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Code Issues Projects Releases Wiki Activity

Rewrite apub comment (de)serialization using structs (ref #1657)

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This commit is contained in:
Felix Ableitner 2021-07-31 16:57:37 +02:00
parent bb7750d8ee
commit 43ad99bbe8
15 changed files with 401 additions and 558 deletions
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11
crates/api_crud/src/comment/create.rs
View file

@ -8,7 +8,12 @@ use lemmy_api_common::{
get_post,
send_local_notifs,
};
use lemmy_apub::{generate_apub_endpoint, ApubLikeableType, ApubObjectType, EndpointType};
use lemmy_apub::{
activities::comment::create::CreateComment as CreateApubComment,
generate_apub_endpoint,
ApubLikeableType,
EndpointType,
};
use lemmy_db_queries::{source::comment::Comment_, Crud, Likeable};
use lemmy_db_schema::source::comment::*;
use lemmy_db_views::comment_view::CommentView;
@ -83,9 +88,7 @@ impl PerformCrud for CreateComment {
.await?
.map_err(|_| ApiError::err("couldnt_create_comment"))?;
updated_comment
.send_create(&local_user_view.person, context)
.await?;
CreateApubComment::send(&updated_comment, &local_user_view.person, context).await?;
// Scan the comment for user mentions, add those rows
let post_id = post.id;

6
crates/api_crud/src/comment/update.rs
View file

@ -7,7 +7,7 @@ use lemmy_api_common::{
get_local_user_view_from_jwt,
send_local_notifs,
};
use lemmy_apub::ApubObjectType;
use lemmy_apub::activities::comment::update::UpdateComment;
use lemmy_db_queries::{source::comment::Comment_, DeleteableOrRemoveable};
use lemmy_db_schema::source::comment::*;
use lemmy_db_views::comment_view::CommentView;
@ -59,9 +59,7 @@ impl PerformCrud for EditComment {
.map_err(|_| ApiError::err("couldnt_update_comment"))?;
// Send the apub update
updated_comment
.send_update(&local_user_view.person, context)
.await?;
UpdateComment::send(&updated_comment, &local_user_view.person, context).await?;
// Do the mentions / recipients
let updated_comment_content = updated_comment.content.to_owned();

59
crates/apub/src/activities/comment/create.rs
View file

@ -1,22 +1,27 @@
use crate::{
activities::{
comment::{get_notif_recipients, send_websocket_message},
comment::{collect_non_local_mentions, get_notif_recipients, send_websocket_message},
community::announce::AnnouncableActivities,
extract_community,
generate_activity_id,
verify_activity,
verify_person_in_community,
},
objects::FromApub,
activity_queue::send_to_community_new,
extensions::context::lemmy_context,
objects::{comment::Note, FromApub, ToApub},
ActorType,
NoteExt,
};
use activitystreams::{activity::kind::CreateType, base::BaseExt};
use activitystreams::{activity::kind::CreateType, link::Mention};
use lemmy_api_common::blocking;
use lemmy_apub_lib::{
values::PublicUrl,
verify_domains_match_opt,
verify_domains_match,
ActivityCommonFields,
ActivityHandler,
};
use lemmy_db_schema::source::comment::Comment;
use lemmy_db_queries::Crud;
use lemmy_db_schema::source::{comment::Comment, community::Community, person::Person, post::Post};
use lemmy_utils::LemmyError;
use lemmy_websocket::{LemmyContext, UserOperationCrud};
use url::Url;
@ -25,14 +30,51 @@ use url::Url;
#[serde(rename_all = "camelCase")]
pub struct CreateComment {
to: PublicUrl,
object: NoteExt,
object: Note,
cc: Vec<Url>,
tag: Vec<Mention>,
#[serde(rename = "type")]
kind: CreateType,
#[serde(flatten)]
common: ActivityCommonFields,
}
impl CreateComment {
pub async fn send(
comment: &Comment,
actor: &Person,
context: &LemmyContext,
) -> Result<(), LemmyError> {
// TODO: would be helpful to add a comment method to retrieve community directly
let post_id = comment.post_id;
let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
let community_id = post.community_id;
let community = blocking(context.pool(), move |conn| {
Community::read(conn, community_id)
})
.await??;
let id = generate_activity_id(CreateType::Create)?;
let maa = collect_non_local_mentions(comment, &community, context).await?;
let create = CreateComment {
to: PublicUrl::Public,
object: comment.to_apub(context.pool()).await?,
cc: maa.ccs,
tag: maa.tags,
kind: Default::default(),
common: ActivityCommonFields {
context: lemmy_context(),
id: id.clone(),
actor: actor.actor_id(),
unparsed: Default::default(),
},
};
let activity = AnnouncableActivities::CreateComment(create);
send_to_community_new(activity, &id, actor, &community, maa.inboxes, context).await
}
}
#[async_trait::async_trait(?Send)]
impl ActivityHandler for CreateComment {
async fn verify(
@ -50,9 +92,10 @@ impl ActivityHandler for CreateComment {
request_counter,
)
.await?;
verify_domains_match_opt(&self.common.actor, self.object.id_unchecked())?;
verify_domains_match(&self.common.actor, &self.object.id)?;
// TODO: should add a check that the correct community is in cc (probably needs changes to
// comment deserialization)
self.object.verify(context, request_counter).await?;
Ok(())
}

124
crates/apub/src/activities/comment/mod.rs
View file

@ -1,14 +1,27 @@
use crate::fetcher::person::get_or_fetch_and_upsert_person;
use lemmy_api_common::{blocking, comment::CommentResponse, send_local_notifs};
use lemmy_db_queries::Crud;
use crate::{fetcher::person::get_or_fetch_and_upsert_person, ActorType};
use activitystreams::{
base::BaseExt,
link::{LinkExt, Mention},
};
use anyhow::anyhow;
use itertools::Itertools;
use lemmy_api_common::{blocking, comment::CommentResponse, send_local_notifs, WebFingerResponse};
use lemmy_db_queries::{Crud, DbPool};
use lemmy_db_schema::{
source::{comment::Comment, post::Post},
source::{comment::Comment, community::Community, person::Person, post::Post},
CommentId,
LocalUserId,
};
use lemmy_db_views::comment_view::CommentView;
use lemmy_utils::{utils::scrape_text_for_mentions, LemmyError};
use lemmy_utils::{
request::{retry, RecvError},
settings::structs::Settings,
utils::{scrape_text_for_mentions, MentionData},
LemmyError,
};
use lemmy_websocket::{messages::SendComment, LemmyContext};
use log::debug;
use reqwest::Client;
use url::Url;
pub mod create;
@ -63,3 +76,104 @@ pub(crate) async fn send_websocket_message<
Ok(())
}
pub struct MentionsAndAddresses {
pub ccs: Vec<Url>,
pub inboxes: Vec<Url>,
pub tags: Vec<Mention>,
}
/// This takes a comment, and builds a list of to_addresses, inboxes,
/// and mention tags, so they know where to be sent to.
/// Addresses are the persons / addresses that go in the cc field.
pub async fn collect_non_local_mentions(
comment: &Comment,
community: &Community,
context: &LemmyContext,
) -> Result<MentionsAndAddresses, LemmyError> {
let parent_creator = get_comment_parent_creator(context.pool(), comment).await?;
let mut addressed_ccs = vec![community.actor_id(), parent_creator.actor_id()];
// Note: dont include community inbox here, as we send to it separately with `send_to_community()`
let mut inboxes = vec![parent_creator.get_shared_inbox_or_inbox_url()];
// Add the mention tag
let mut tags = Vec::new();
// Get the person IDs for any mentions
let mentions = scrape_text_for_mentions(&comment.content)
.into_iter()
// Filter only the non-local ones
.filter(|m| !m.is_local())
.collect::<Vec<MentionData>>();
for mention in &mentions {
// TODO should it be fetching it every time?
if let Ok(actor_id) = fetch_webfinger_url(mention, context.client()).await {
debug!("mention actor_id: {}", actor_id);
addressed_ccs.push(actor_id.to_owned().to_string().parse()?);
let mention_person = get_or_fetch_and_upsert_person(&actor_id, context, &mut 0).await?;
inboxes.push(mention_person.get_shared_inbox_or_inbox_url());
let mut mention_tag = Mention::new();
mention_tag.set_href(actor_id).set_name(mention.full_name());
tags.push(mention_tag);
}
}
let inboxes = inboxes.into_iter().unique().collect();
Ok(MentionsAndAddresses {
ccs: addressed_ccs,
inboxes,
tags,
})
}
/// Returns the apub ID of the person this comment is responding to. Meaning, in case this is a
/// top-level comment, the creator of the post, otherwise the creator of the parent comment.
async fn get_comment_parent_creator(
pool: &DbPool,
comment: &Comment,
) -> Result<Person, LemmyError> {
let parent_creator_id = if let Some(parent_comment_id) = comment.parent_id {
let parent_comment =
blocking(pool, move |conn| Comment::read(conn, parent_comment_id)).await??;
parent_comment.creator_id
} else {
let parent_post_id = comment.post_id;
let parent_post = blocking(pool, move |conn| Post::read(conn, parent_post_id)).await??;
parent_post.creator_id
};
Ok(blocking(pool, move |conn| Person::read(conn, parent_creator_id)).await??)
}
/// Turns a person id like `@name@example.com` into an apub ID, like `https://example.com/user/name`,
/// using webfinger.
async fn fetch_webfinger_url(mention: &MentionData, client: &Client) -> Result<Url, LemmyError> {
let fetch_url = format!(
"{}://{}/.well-known/webfinger?resource=acct:{}@{}",
Settings::get().get_protocol_string(),
mention.domain,
mention.name,
mention.domain
);
debug!("Fetching webfinger url: {}", &fetch_url);
let response = retry(|| client.get(&fetch_url).send()).await?;
let res: WebFingerResponse = response
.json()
.await
.map_err(|e| RecvError(e.to_string()))?;
let link = res
.links
.iter()
.find(|l| l.type_.eq(&Some("application/activity+json".to_string())))
.ok_or_else(|| anyhow!("No application/activity+json link found."))?;
link
.href
.to_owned()
.ok_or_else(|| anyhow!("No href found.").into())
}

64
crates/apub/src/activities/comment/remove.rs
View file

@ -1,64 +0,0 @@
use crate::{
activities::{comment::send_websocket_message, verify_mod_action},
check_is_apub_id_valid,
fetcher::objects::get_or_fetch_and_insert_comment,
};
use activitystreams::activity::kind::RemoveType;
use lemmy_api_common::blocking;
use lemmy_apub_lib::{
values::PublicUrl,
verify_domains_match,
ActivityCommonFields,
ActivityHandlerNew,
};
use lemmy_db_queries::source::comment::Comment_;
use lemmy_db_schema::source::comment::Comment;
use lemmy_utils::LemmyError;
use lemmy_websocket::{LemmyContext, UserOperationCrud};
use url::Url;
#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "camelCase")]
pub struct RemoveComment {
to: PublicUrl,
pub(in crate::activities::comment) object: Url,
cc: [Url; 1],
#[serde(rename = "type")]
kind: RemoveType,
#[serde(flatten)]
common: ActivityCommonFields,
}
#[async_trait::async_trait(?Send)]
impl ActivityHandlerNew for RemoveComment {
async fn verify(&self, context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
check_is_apub_id_valid(&self.common.actor, false)?;
verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await
}
async fn receive(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
let comment = get_or_fetch_and_insert_comment(&self.object, context, request_counter).await?;
let removed_comment = blocking(context.pool(), move |conn| {
Comment::update_removed(conn, comment.id, true)
})
.await??;
send_websocket_message(
removed_comment.id,
vec![],
UserOperationCrud::EditComment,
context,
)
.await
}
fn common(&self) -> &ActivityCommonFields {
&self.common
}
}

73
crates/apub/src/activities/comment/undo_remove.rs
View file

@ -1,73 +0,0 @@
use crate::{
activities::{
comment::{remove::RemoveComment, send_websocket_message},
verify_mod_action,
},
check_is_apub_id_valid,
fetcher::objects::get_or_fetch_and_insert_comment,
};
use activitystreams::activity::kind::UndoType;
use lemmy_api_common::blocking;
use lemmy_apub_lib::{
values::PublicUrl,
verify_domains_match,
ActivityCommonFields,
ActivityHandlerNew,
};
use lemmy_db_queries::source::comment::Comment_;
use lemmy_db_schema::source::comment::Comment;
use lemmy_utils::LemmyError;
use lemmy_websocket::{LemmyContext, UserOperationCrud};
use url::Url;
#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "camelCase")]
pub struct UndoRemoveComment {
to: PublicUrl,
object: RemoveComment,
cc: [Url; 1],
#[serde(rename = "type")]
kind: UndoType,
#[serde(flatten)]
common: ActivityCommonFields,
}
#[async_trait::async_trait(?Send)]
impl ActivityHandlerNew for UndoRemoveComment {
async fn verify(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
check_is_apub_id_valid(&self.common.actor, false)?;
verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
self.object.verify(context, request_counter).await
}
async fn receive(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
let comment =
get_or_fetch_and_insert_comment(&self.object.object, context, request_counter).await?;
let removed_comment = blocking(context.pool(), move |conn| {
Comment::update_removed(conn, comment.id, false)
})
.await??;
send_websocket_message(
removed_comment.id,
vec![],
UserOperationCrud::EditComment,
context,
)
.await
}
fn common(&self) -> &ActivityCommonFields {
&self.common
}
}

59
crates/apub/src/activities/comment/update.rs
View file

@ -1,22 +1,27 @@
use crate::{
activities::{
comment::{get_notif_recipients, send_websocket_message},
comment::{collect_non_local_mentions, get_notif_recipients, send_websocket_message},
community::announce::AnnouncableActivities,
extract_community,
generate_activity_id,
verify_activity,
verify_person_in_community,
},
objects::FromApub,
activity_queue::send_to_community_new,
extensions::context::lemmy_context,
objects::{comment::Note, FromApub, ToApub},
ActorType,
NoteExt,
};
use activitystreams::{activity::kind::UpdateType, base::BaseExt};
use activitystreams::{activity::kind::UpdateType, link::Mention};
use lemmy_api_common::blocking;
use lemmy_apub_lib::{
values::PublicUrl,
verify_domains_match_opt,
verify_domains_match,
ActivityCommonFields,
ActivityHandler,
};
use lemmy_db_schema::source::comment::Comment;
use lemmy_db_queries::Crud;
use lemmy_db_schema::source::{comment::Comment, community::Community, person::Person, post::Post};
use lemmy_utils::LemmyError;
use lemmy_websocket::{LemmyContext, UserOperationCrud};
use url::Url;
@ -25,14 +30,51 @@ use url::Url;
#[serde(rename_all = "camelCase")]
pub struct UpdateComment {
to: PublicUrl,
object: NoteExt,
object: Note,
cc: Vec<Url>,
tag: Vec<Mention>,
#[serde(rename = "type")]
kind: UpdateType,
#[serde(flatten)]
common: ActivityCommonFields,
}
impl UpdateComment {
pub async fn send(
comment: &Comment,
actor: &Person,
context: &LemmyContext,
) -> Result<(), LemmyError> {
// TODO: would be helpful to add a comment method to retrieve community directly
let post_id = comment.post_id;
let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
let community_id = post.community_id;
let community = blocking(context.pool(), move |conn| {
Community::read(conn, community_id)
})
.await??;
let id = generate_activity_id(UpdateType::Update)?;
let maa = collect_non_local_mentions(comment, &community, context).await?;
let update = UpdateComment {
to: PublicUrl::Public,
object: comment.to_apub(context.pool()).await?,
cc: maa.ccs,
tag: maa.tags,
kind: Default::default(),
common: ActivityCommonFields {
context: lemmy_context(),
id: id.clone(),
actor: actor.actor_id(),
unparsed: Default::default(),
},
};
let activity = AnnouncableActivities::UpdateComment(update);
send_to_community_new(activity, &id, actor, &community, maa.inboxes, context).await
}
}
#[async_trait::async_trait(?Send)]
impl ActivityHandler for UpdateComment {
async fn verify(
@ -50,7 +92,8 @@ impl ActivityHandler for UpdateComment {
request_counter,
)
.await?;
verify_domains_match_opt(&self.common.actor, self.object.id_unchecked())?;
verify_domains_match(&self.common.actor, &self.object.id)?;
self.object.verify(context, request_counter).await?;
Ok(())
}

2
crates/apub/src/activities/mod.rs
View file

@ -61,7 +61,7 @@ pub(crate) async fn extract_community(
/// Fetches the person and community to verify their type, then checks if person is banned from site
/// or community.
async fn verify_person_in_community(
pub(crate) async fn verify_person_in_community(
person_id: &Url,
community_id: &Url,
context: &LemmyContext,

212
crates/apub/src/activities/send/comment.rs
View file

@ -1,112 +1,45 @@
use crate::{
activities::generate_activity_id,
activity_queue::{send_comment_mentions, send_to_community},
activity_queue::send_to_community,
extensions::context::lemmy_context,
fetcher::person::get_or_fetch_and_upsert_person,
objects::ToApub,
ActorType,
ApubLikeableType,
ApubObjectType,
};
use activitystreams::{
activity::{
kind::{CreateType, DeleteType, DislikeType, LikeType, RemoveType, UndoType, UpdateType},
Create,
kind::{DeleteType, DislikeType, LikeType, RemoveType, UndoType},
Delete,
Dislike,
Like,
Remove,
Undo,
Update,
},
base::AnyBase,
link::Mention,
prelude::*,
public,
};
use anyhow::anyhow;
use itertools::Itertools;
use lemmy_api_common::{blocking, WebFingerResponse};
use lemmy_db_queries::{Crud, DbPool};
use lemmy_api_common::blocking;
use lemmy_db_queries::Crud;
use lemmy_db_schema::source::{comment::Comment, community::Community, person::Person, post::Post};
use lemmy_utils::{
request::{retry, RecvError},
settings::structs::Settings,
utils::{scrape_text_for_mentions, MentionData},
LemmyError,
};
use lemmy_utils::LemmyError;
use lemmy_websocket::LemmyContext;
use log::debug;
use reqwest::Client;
use serde_json::Error;
use url::Url;
#[async_trait::async_trait(?Send)]
impl ApubObjectType for Comment {
/// Send out information about a newly created comment, to the followers of the community and
/// mentioned persons.
async fn send_create(&self, creator: &Person, context: &LemmyContext) -> Result<(), LemmyError> {
let note = self.to_apub(context.pool()).await?;
let post_id = self.post_id;
let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
let community_id = post.community_id;
let community = blocking(context.pool(), move |conn| {
Community::read(conn, community_id)
})
.await??;
let maa = collect_non_local_mentions(self, &community, context).await?;
let mut create = Create::new(
creator.actor_id.to_owned().into_inner(),
note.into_any_base()?,
);
create
.set_many_contexts(lemmy_context())
.set_id(generate_activity_id(CreateType::Create)?)
.set_to(public())
.set_many_ccs(maa.ccs.to_owned())
// Set the mention tags
.set_many_tags(maa.get_tags()?);
send_to_community(create.clone(), creator, &community, None, context).await?;
send_comment_mentions(creator, maa.inboxes, create, context).await?;
Ok(())
async fn send_create(
&self,
_creator: &Person,
_context: &LemmyContext,
) -> Result<(), LemmyError> {
unimplemented!()
}
/// Send out information about an edited post, to the followers of the community and mentioned
/// persons.
async fn send_update(&self, creator: &Person, context: &LemmyContext) -> Result<(), LemmyError> {
let note = self.to_apub(context.pool()).await?;
let post_id = self.post_id;
let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
let community_id = post.community_id;
let community = blocking(context.pool(), move |conn| {
Community::read(conn, community_id)
})
.await??;
let maa = collect_non_local_mentions(self, &community, context).await?;
let mut update = Update::new(
creator.actor_id.to_owned().into_inner(),
note.into_any_base()?,
);
update
.set_many_contexts(lemmy_context())
.set_id(generate_activity_id(UpdateType::Update)?)
.set_to(public())
.set_many_ccs(maa.ccs.to_owned())
// Set the mention tags
.set_many_tags(maa.get_tags()?);
send_to_community(update.clone(), creator, &community, None, context).await?;
send_comment_mentions(creator, maa.inboxes, update, context).await?;
Ok(())
async fn send_update(
&self,
_creator: &Person,
_context: &LemmyContext,
) -> Result<(), LemmyError> {
unimplemented!()
}
async fn send_delete(&self, creator: &Person, context: &LemmyContext) -> Result<(), LemmyError> {
@ -327,114 +260,3 @@ impl ApubLikeableType for Comment {
Ok(())
}
}
struct MentionsAndAddresses {
ccs: Vec<Url>,
inboxes: Vec<Url>,
tags: Vec<Mention>,
}
impl MentionsAndAddresses {
fn get_tags(&self) -> Result<Vec<AnyBase>, Error> {
self
.tags
.iter()
.map(|t| t.to_owned().into_any_base())
.collect::<Result<Vec<AnyBase>, Error>>()
}
}
/// This takes a comment, and builds a list of to_addresses, inboxes,
/// and mention tags, so they know where to be sent to.
/// Addresses are the persons / addresses that go in the cc field.
async fn collect_non_local_mentions(
comment: &Comment,
community: &Community,
context: &LemmyContext,
) -> Result<MentionsAndAddresses, LemmyError> {
let parent_creator = get_comment_parent_creator(context.pool(), comment).await?;
let mut addressed_ccs = vec![community.actor_id(), parent_creator.actor_id()];
// Note: dont include community inbox here, as we send to it separately with `send_to_community()`
let mut inboxes = vec![parent_creator.get_shared_inbox_or_inbox_url()];
// Add the mention tag
let mut tags = Vec::new();
// Get the person IDs for any mentions
let mentions = scrape_text_for_mentions(&comment.content)
.into_iter()
// Filter only the non-local ones
.filter(|m| !m.is_local())
.collect::<Vec<MentionData>>();
for mention in &mentions {
// TODO should it be fetching it every time?
if let Ok(actor_id) = fetch_webfinger_url(mention, context.client()).await {
debug!("mention actor_id: {}", actor_id);
addressed_ccs.push(actor_id.to_owned().to_string().parse()?);
let mention_person = get_or_fetch_and_upsert_person(&actor_id, context, &mut 0).await?;
inboxes.push(mention_person.get_shared_inbox_or_inbox_url());
let mut mention_tag = Mention::new();
mention_tag.set_href(actor_id).set_name(mention.full_name());
tags.push(mention_tag);
}
}
let inboxes = inboxes.into_iter().unique().collect();
Ok(MentionsAndAddresses {
ccs: addressed_ccs,
inboxes,
tags,
})
}
/// Returns the apub ID of the person this comment is responding to. Meaning, in case this is a
/// top-level comment, the creator of the post, otherwise the creator of the parent comment.
async fn get_comment_parent_creator(
pool: &DbPool,
comment: &Comment,
) -> Result<Person, LemmyError> {
let parent_creator_id = if let Some(parent_comment_id) = comment.parent_id {
let parent_comment =
blocking(pool, move |conn| Comment::read(conn, parent_comment_id)).await??;
parent_comment.creator_id
} else {
let parent_post_id = comment.post_id;
let parent_post = blocking(pool, move |conn| Post::read(conn, parent_post_id)).await??;
parent_post.creator_id
};
Ok(blocking(pool, move |conn| Person::read(conn, parent_creator_id)).await??)
}
/// Turns a person id like `@name@example.com` into an apub ID, like `https://example.com/user/name`,
/// using webfinger.
async fn fetch_webfinger_url(mention: &MentionData, client: &Client) -> Result<Url, LemmyError> {
let fetch_url = format!(
"{}://{}/.well-known/webfinger?resource=acct:{}@{}",
Settings::get().get_protocol_string(),
mention.domain,
mention.name,
mention.domain
);
debug!("Fetching webfinger url: {}", &fetch_url);
let response = retry(|| client.get(&fetch_url).send()).await?;
let res: WebFingerResponse = response
.json()
.await
.map_err(|e| RecvError(e.to_string()))?;
let link = res
.links
.iter()
.find(|l| l.type_.eq(&Some("application/activity+json".to_string())))
.ok_or_else(|| anyhow!("No application/activity+json link found."))?;
link
.href
.to_owned()
.ok_or_else(|| anyhow!("No href found.").into())
}

34
crates/apub/src/activity_queue.rs
View file

@ -138,40 +138,6 @@ where
Ok(())
}
/// Sends notification to any persons mentioned in a comment
///
/// * `creator` person who created the comment
/// * `mentions` list of inboxes of persons which are mentioned in the comment
/// * `activity` either a `Create/Note` or `Update/Note`
pub(crate) async fn send_comment_mentions<T, Kind>(
creator: &Person,
mentions: Vec<Url>,
activity: T,
context: &LemmyContext,
) -> Result<(), LemmyError>
where
T: AsObject<Kind> + Extends<Kind> + Debug + BaseExt<Kind>,
Kind: Serialize,
<T as Extends<Kind>>::Error: From<serde_json::Error> + Send + Sync + 'static,
{
debug!(
"Sending mentions activity {:?} to {:?}",
&activity.id_unchecked(),
&mentions
);
let mentions = mentions
.iter()
.filter(|inbox| check_is_apub_id_valid(inbox, false).is_ok())
.map(|i| i.to_owned())
.collect();
send_activity_internal(
context, activity, creator, mentions, false, // Don't create a new DB row
false,
)
.await?;
Ok(())
}
pub(crate) async fn send_to_community_new(
activity: AnnouncableActivities,
activity_id: &Url,

5
crates/apub/src/fetcher/objects.rs
View file

@ -1,7 +1,6 @@
use crate::{
fetcher::fetch::fetch_remote_object,
objects::{post::Page, FromApub},
NoteExt,
objects::{comment::Note, post::Page, FromApub},
PostOrComment,
};
use anyhow::anyhow;
@ -73,7 +72,7 @@ pub async fn get_or_fetch_and_insert_comment(
comment_ap_id
);
let comment =
fetch_remote_object::<NoteExt>(context.client(), comment_ap_id, recursion_counter).await?;
fetch_remote_object::<Note>(context.client(), comment_ap_id, recursion_counter).await?;
let comment = Comment::from_apub(
&comment,
context,

5
crates/apub/src/fetcher/search.rs
View file

@ -6,9 +6,8 @@ use crate::{
is_deleted,
},
find_object_by_id,
objects::{post::Page, FromApub},
objects::{comment::Note, post::Page, FromApub},
GroupExt,
NoteExt,
Object,
PersonExt,
};
@ -46,7 +45,7 @@ enum SearchAcceptedObjects {
Person(Box<PersonExt>),
Group(Box<GroupExt>),
Page(Box<Page>),
Comment(Box<NoteExt>),
Comment(Box<Note>),
}
/// Attempt to parse the query as URL, and fetch an ActivityPub object from it.

258
crates/apub/src/objects/comment.rs
View file

@ -1,29 +1,24 @@
use crate::{
activities::verify_person_in_community,
extensions::context::lemmy_context,
fetcher::objects::{get_or_fetch_and_insert_comment, get_or_fetch_and_insert_post},
get_community_from_to_or_cc,
objects::{
check_object_domain,
check_object_for_community_or_site_ban,
create_tombstone,
get_object_from_apub,
get_or_fetch_and_upsert_person,
get_source_markdown_value,
set_content_and_source,
FromApub,
FromApubToForm,
ToApub,
},
NoteExt,
objects::{create_tombstone, get_or_fetch_and_upsert_person, FromApub, Source, ToApub},
ActorType,
};
use activitystreams::{
object::{kind::NoteType, ApObject, Note, Tombstone},
prelude::*,
public,
base::AnyBase,
object::{kind::NoteType, Tombstone},
primitives::OneOrMany,
unparsed::Unparsed,
};
use anyhow::{anyhow, Context};
use chrono::{DateTime, FixedOffset};
use lemmy_api_common::blocking;
use lemmy_db_queries::{Crud, DbPool};
use lemmy_apub_lib::{
values::{MediaTypeHtml, MediaTypeMarkdown, PublicUrl},
verify_domains_match,
};
use lemmy_db_queries::{ApubObject, Crud, DbPool};
use lemmy_db_schema::{
source::{
comment::{Comment, CommentForm},
@ -39,24 +34,103 @@ use lemmy_utils::{
LemmyError,
};
use lemmy_websocket::LemmyContext;
use serde::{Deserialize, Serialize};
use url::Url;
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Note {
#[serde(rename = "@context")]
context: OneOrMany<AnyBase>,
r#type: NoteType,
pub(crate) id: Url,
pub(crate) attributed_to: Url,
/// Indicates that the object is publicly readable. Unlike [`Post.to`], this one doesn't contain
/// the community ID, as it would be incompatible with Pleroma (and we can get the community from
/// the post in [`in_reply_to`]).
to: PublicUrl,
content: String,
media_type: MediaTypeHtml,
source: Source,
in_reply_to: Vec<Url>,
published: DateTime<FixedOffset>,
updated: Option<DateTime<FixedOffset>>,
#[serde(flatten)]
unparsed: Unparsed,
}
impl Note {
async fn get_parents(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(Post, Option<CommentId>), LemmyError> {
// This post, or the parent comment might not yet exist on this server yet, fetch them.
let post_id = self.in_reply_to.get(0).context(location_info!())?;
let post = Box::pin(get_or_fetch_and_insert_post(
post_id,
context,
request_counter,
))
.await?;
// The 2nd item, if it exists, is the parent comment apub_id
// Nested comments will automatically get fetched recursively
let parent_id: Option<CommentId> = match self.in_reply_to.get(1) {
Some(parent_comment_uri) => {
let parent_comment = Box::pin(get_or_fetch_and_insert_comment(
parent_comment_uri,
context,
request_counter,
))
.await?;
Some(parent_comment.id)
}
None => None,
};
Ok((post, parent_id))
}
pub(crate) async fn verify(
&self,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
let (post, _parent_comment_id) = self.get_parents(context, request_counter).await?;
let community_id = post.community_id;
let community = blocking(context.pool(), move |conn| {
Community::read(conn, community_id)
})
.await??;
if post.locked {
return Err(anyhow!("Post is locked").into());
}
verify_domains_match(&self.attributed_to, &self.id)?;
verify_person_in_community(
&self.attributed_to,
&community.actor_id(),
context,
request_counter,
)
.await?;
Ok(())
}
}
#[async_trait::async_trait(?Send)]
impl ToApub for Comment {
type ApubType = NoteExt;
async fn to_apub(&self, pool: &DbPool) -> Result<NoteExt, LemmyError> {
let mut comment = ApObject::new(Note::new());
type ApubType = Note;
async fn to_apub(&self, pool: &DbPool) -> Result<Note, LemmyError> {
let creator_id = self.creator_id;
let creator = blocking(pool, move |conn| Person::read(conn, creator_id)).await??;
let post_id = self.post_id;
let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;
let community_id = post.community_id;
let community = blocking(pool, move |conn| Community::read(conn, community_id)).await??;
// Add a vector containing some important info to the "in_reply_to" field
// [post_ap_id, Option(parent_comment_ap_id)]
let mut in_reply_to_vec = vec![post.ap_id.into_inner()];
@ -67,23 +141,25 @@ impl ToApub for Comment {
in_reply_to_vec.push(parent_comment.ap_id.into_inner());
}
comment
// Not needed when the Post is embedded in a collection (like for community outbox)
.set_many_contexts(lemmy_context())
.set_id(self.ap_id.to_owned().into_inner())
.set_published(convert_datetime(self.published))
// NOTE: included community id for compatibility with lemmy v0.9.9
.set_many_tos(vec![community.actor_id.into_inner(), public()])
.set_many_in_reply_tos(in_reply_to_vec)
.set_attributed_to(creator.actor_id.into_inner());
let note = Note {
context: lemmy_context(),
r#type: NoteType::Note,
id: self.ap_id.to_owned().into_inner(),
attributed_to: creator.actor_id.into_inner(),
to: PublicUrl::Public,
content: self.content.clone(),
media_type: MediaTypeHtml::Html,
source: Source {
content: self.content.clone(),
media_type: MediaTypeMarkdown::Markdown,
},
in_reply_to: in_reply_to_vec,
published: convert_datetime(self.published),
updated: self.updated.map(convert_datetime),
unparsed: Default::default(),
};
set_content_and_source(&mut comment, &self.content)?;
if let Some(u) = self.updated {
comment.set_updated(convert_datetime(u));
}
Ok(comment)
Ok(note)
}
fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
@ -98,108 +174,38 @@ impl ToApub for Comment {
#[async_trait::async_trait(?Send)]
impl FromApub for Comment {
type ApubType = NoteExt;
type ApubType = Note;
/// Converts a `Note` to `Comment`.
///
/// If the parent community, post and comment(s) are not known locally, these are also fetched.
async fn from_apub(
note: &NoteExt,
note: &Note,
context: &LemmyContext,
expected_domain: Url,
request_counter: &mut i32,
mod_action_allowed: bool,
) -> Result<Comment, LemmyError> {
let comment: Comment = get_object_from_apub(
note,
context,
expected_domain,
request_counter,
mod_action_allowed,
)
.await?;
let post_id = comment.post_id;
let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
check_object_for_community_or_site_ban(note, post.community_id, context, request_counter)
.await?;
Ok(comment)
}
}
#[async_trait::async_trait(?Send)]
impl FromApubToForm<NoteExt> for CommentForm {
async fn from_apub(
note: &NoteExt,
context: &LemmyContext,
expected_domain: Url,
_expected_domain: Url,
request_counter: &mut i32,
_mod_action_allowed: bool,
) -> Result<CommentForm, LemmyError> {
let community = get_community_from_to_or_cc(note, context, request_counter).await?;
let ap_id = Some(check_object_domain(note, expected_domain, community.local)?);
let creator_actor_id = &note
.attributed_to()
.context(location_info!())?
.as_single_xsd_any_uri()
.context(location_info!())?;
) -> Result<Comment, LemmyError> {
let creator =
get_or_fetch_and_upsert_person(creator_actor_id, context, request_counter).await?;
get_or_fetch_and_upsert_person(&note.attributed_to, context, request_counter).await?;
let (post, parent_comment_id) = note.get_parents(context, request_counter).await?;
let mut in_reply_tos = note
.in_reply_to()
.as_ref()
.context(location_info!())?
.as_many()
.context(location_info!())?
.iter()
.map(|i| i.as_xsd_any_uri().context(""));
let post_ap_id = in_reply_tos.next().context(location_info!())??;
let content = &note.source.content;
let content_slurs_removed = remove_slurs(content);
// This post, or the parent comment might not yet exist on this server yet, fetch them.
let post = Box::pin(get_or_fetch_and_insert_post(
post_ap_id,
context,
request_counter,
))
.await?;
if post.locked {
return Err(anyhow!("Post is locked").into());
}
// The 2nd item, if it exists, is the parent comment apub_id
// For deeply nested comments, FromApub automatically gets called recursively
let parent_id: Option<CommentId> = match in_reply_tos.next() {
Some(parent_comment_uri) => {
let parent_comment_ap_id = &parent_comment_uri?;
let parent_comment = Box::pin(get_or_fetch_and_insert_comment(
parent_comment_ap_id,
context,
request_counter,
))
.await?;
Some(parent_comment.id)
}
None => None,
};
let content = get_source_markdown_value(note)?.context(location_info!())?;
let content_slurs_removed = remove_slurs(&content);
Ok(CommentForm {
let form = CommentForm {
creator_id: creator.id,
post_id: post.id,
parent_id,
parent_id: parent_comment_id,
content: content_slurs_removed,
removed: None,
read: None,
published: note.published().map(|u| u.to_owned().naive_local()),
updated: note.updated().map(|u| u.to_owned().naive_local()),
published: Some(note.published.naive_local()),
updated: note.updated.map(|u| u.to_owned().naive_local()),
deleted: None,
ap_id,
ap_id: Some(note.id.clone().into()),
local: Some(false),
})
};
Ok(blocking(context.pool(), move |conn| Comment::upsert(conn, &form)).await??)
}
}

26
crates/apub/src/objects/mod.rs
View file

@ -1,8 +1,4 @@
use crate::{
check_community_or_site_ban,
check_is_apub_id_valid,
fetcher::person::get_or_fetch_and_upsert_person,
};
use crate::{check_is_apub_id_valid, fetcher::person::get_or_fetch_and_upsert_person};
use activitystreams::{
base::{AsBase, BaseExt, ExtendsExt},
markers::Base,
@ -14,7 +10,7 @@ use chrono::NaiveDateTime;
use lemmy_api_common::blocking;
use lemmy_apub_lib::values::MediaTypeMarkdown;
use lemmy_db_queries::{ApubObject, Crud, DbPool};
use lemmy_db_schema::{CommunityId, DbUrl};
use lemmy_db_schema::DbUrl;
use lemmy_utils::{
location_info,
settings::structs::Settings,
@ -219,21 +215,3 @@ where
Ok(to)
}
}
pub(in crate::objects) async fn check_object_for_community_or_site_ban<T, Kind>(
object: &T,
community_id: CommunityId,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError>
where
T: ObjectExt<Kind>,
{
let person_id = object
.attributed_to()
.context(location_info!())?
.as_single_xsd_any_uri()
.context(location_info!())?;
let person = get_or_fetch_and_upsert_person(person_id, context, request_counter).await?;
check_community_or_site_ban(&person, community_id, context.pool()).await
}

21
crates/apub/src/objects/post.rs
View file

@ -1,8 +1,9 @@
use crate::{
activities::extract_community,
activities::{extract_community, verify_person_in_community},
extensions::context::lemmy_context,
fetcher::person::get_or_fetch_and_upsert_person,
objects::{create_tombstone, FromApub, Source, ToApub},
ActorType,
};
use activitystreams::{
base::AnyBase,
@ -35,9 +36,10 @@ use lemmy_utils::{
LemmyError,
};
use lemmy_websocket::LemmyContext;
use serde::{Deserialize, Serialize};
use url::Url;
#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Page {
#[serde(rename = "@context")]
@ -57,8 +59,6 @@ pub struct Page {
pub(crate) stickied: Option<bool>,
published: DateTime<FixedOffset>,
updated: Option<DateTime<FixedOffset>>,
// unparsed fields
#[serde(flatten)]
unparsed: Unparsed,
}
@ -92,11 +92,20 @@ impl Page {
pub(crate) async fn verify(
&self,
_context: &LemmyContext,
_request_counter: &mut i32,
context: &LemmyContext,
request_counter: &mut i32,
) -> Result<(), LemmyError> {
let community = extract_community(&self.to, context, request_counter).await?;
check_slurs(&self.name)?;
verify_domains_match(&self.attributed_to, &self.id)?;
verify_person_in_community(
&self.attributed_to,
&community.actor_id(),
context,
request_counter,
)
.await?;
Ok(())
}
}