lemmy/crates/apub/src/mentions.rs
dullbananas 1d38aad9d3
Make functions work with both connection and pool (#3420)
* a lot

* merge

* Fix stuff broken by merge

* Get rid of repetitive `&mut *context.conn().await?`

* Add blank lines under each line with `conn =`

* Fix style mistakes (partial)

* Revert "Fix style mistakes (partial)"

This reverts commit 48a033b87f.

* Revert "Add blank lines under each line with `conn =`"

This reverts commit 773a6d3beb.

* Revert "Get rid of repetitive `&mut *context.conn().await?`"

This reverts commit d2c6263ea1.

* Use DbConn for CaptchaAnswer methods

* DbConn trait

* Remove more `&mut *`

* Fix stuff

* Re-run CI

* try to make ci start

* fix

* fix

* Fix api_common::utils

* Fix apub::activities::block

* Fix apub::api::resolve_object

* Fix some things

* Revert "Fix some things"

This reverts commit 2bf8574bc8.

* Revert "Fix apub::api::resolve_object"

This reverts commit 3e4059aabb.

* Revert "Fix apub::activities::block"

This reverts commit 3b02389abd.

* Revert "Fix api_common::utils"

This reverts commit 7dc73de613.

* Revert "Revert "Fix api_common::utils""

This reverts commit f740f115e5.

* Revert "Revert "Fix apub::activities::block""

This reverts commit 2ee206af7c.

* Revert "Revert "Fix apub::api::resolve_object""

This reverts commit 96ed8bf2e9.

* Fix fetch_local_site_data

* Fix get_comment_parent_creator

* Remove unused perma deleted text

* Fix routes::feeds

* Fix lib.rs

* Update lib.rs

* rerun ci

* Attempt to create custom GetConn and RunQueryDsl traits

* Start over

* Add GetConn trait

* aaaa

* Revert "aaaa"

This reverts commit acc9ca1aed.

* Revert "Revert "aaaa""

This reverts commit 443a2a00a5.

* still aaaaaaaaaaaaa

* Return to earlier thing

Revert "Add GetConn trait"

This reverts commit ab4e94aea5.

* Try to use DbPool enum

* Revert "Try to use DbPool enum"

This reverts commit e4d1712646.

* DbConn and DbPool enums (db_schema only fails to compile for tests)

* fmt

* Make functions take `&mut DbPool<'_>` and make db_schema tests compile

* Add try_join_with_pool macro and run fix-clippy on more crates

* Fix some errors

* I did it

* Remove function variants that take connection

* rerun ci

* rerun ci

* rerun ci
2023-07-11 09:09:59 -04:00

108 lines
3.4 KiB
Rust

use crate::objects::{comment::ApubComment, community::ApubCommunity, person::ApubPerson};
use activitypub_federation::{
config::Data,
fetch::{object_id::ObjectId, webfinger::webfinger_resolve_actor},
kinds::link::MentionType,
traits::Actor,
};
use lemmy_api_common::context::LemmyContext;
use lemmy_db_schema::{
source::{comment::Comment, person::Person, post::Post},
traits::Crud,
utils::DbPool,
};
use lemmy_utils::{error::LemmyError, utils::mention::scrape_text_for_mentions};
use serde::{Deserialize, Serialize};
use serde_json::Value;
use url::Url;
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(untagged)]
pub enum MentionOrValue {
Mention(Mention),
Value(Value),
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Mention {
pub href: Url,
name: Option<String>,
#[serde(rename = "type")]
pub kind: MentionType,
}
pub struct MentionsAndAddresses {
pub ccs: Vec<Url>,
pub tags: Vec<MentionOrValue>,
}
/// 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.
#[tracing::instrument(skip(comment, community_id, context))]
pub async fn collect_non_local_mentions(
comment: &ApubComment,
community_id: ObjectId<ApubCommunity>,
context: &Data<LemmyContext>,
) -> Result<MentionsAndAddresses, LemmyError> {
let parent_creator = get_comment_parent_creator(&mut context.pool(), comment).await?;
let mut addressed_ccs: Vec<Url> = vec![community_id.into(), parent_creator.id()];
// Add the mention tag
let parent_creator_tag = Mention {
href: parent_creator.actor_id.clone().into(),
name: Some(format!(
"@{}@{}",
&parent_creator.name,
&parent_creator.id().domain().expect("has domain")
)),
kind: MentionType::Mention,
};
let mut tags = vec![parent_creator_tag];
// 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(&context.settings().hostname));
for mention in mentions {
let identifier = format!("{}@{}", mention.name, mention.domain);
let person = webfinger_resolve_actor::<LemmyContext, ApubPerson>(&identifier, context).await;
if let Ok(person) = person {
addressed_ccs.push(person.actor_id.to_string().parse()?);
let mention_tag = Mention {
href: person.id(),
name: Some(mention.full_name()),
kind: MentionType::Mention,
};
tags.push(mention_tag);
}
}
let tags = tags.into_iter().map(MentionOrValue::Mention).collect();
Ok(MentionsAndAddresses {
ccs: addressed_ccs,
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.
#[tracing::instrument(skip(pool, comment))]
async fn get_comment_parent_creator(
pool: &mut DbPool<'_>,
comment: &Comment,
) -> Result<ApubPerson, LemmyError> {
let parent_creator_id = if let Some(parent_comment_id) = comment.parent_comment_id() {
let parent_comment = Comment::read(pool, parent_comment_id).await?;
parent_comment.creator_id
} else {
let parent_post_id = comment.post_id;
let parent_post = Post::read(pool, parent_post_id).await?;
parent_post.creator_id
};
Ok(Person::read(pool, parent_creator_id).await?.into())
}