lemmy/crates/db_queries/src/source/activity.rs
Nutomic 527eefbe92
Rewrite fetcher (#1792)
* Use new fetcher implementation for post/comment

* rewrite person fetch to use new fetcher

* rewrite community to use new fetcher

* rename new_fetcher to dereference_object_id

* make ObjectId a newtype

* handle deletion in new fetcher

* rewrite apub object search to be generic

* move upsert() method out of ApubObject trait

* simplify ObjectId::new (and fix clippy)
2021-09-25 11:44:52 -04:00

194 lines
5.5 KiB
Rust

use crate::Crud;
use diesel::{dsl::*, result::Error, sql_types::Text, *};
use lemmy_db_schema::{source::activity::*, DbUrl};
use serde::Serialize;
use serde_json::Value;
use std::{
fmt::Debug,
io::{Error as IoError, ErrorKind},
};
impl Crud for Activity {
type Form = ActivityForm;
type IdType = i32;
fn read(conn: &PgConnection, activity_id: i32) -> Result<Self, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
activity.find(activity_id).first::<Self>(conn)
}
fn create(conn: &PgConnection, new_activity: &ActivityForm) -> Result<Self, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
insert_into(activity)
.values(new_activity)
.get_result::<Self>(conn)
}
fn update(
conn: &PgConnection,
activity_id: i32,
new_activity: &ActivityForm,
) -> Result<Self, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
diesel::update(activity.find(activity_id))
.set(new_activity)
.get_result::<Self>(conn)
}
fn delete(conn: &PgConnection, activity_id: i32) -> Result<usize, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
diesel::delete(activity.find(activity_id)).execute(conn)
}
}
pub trait Activity_ {
fn insert<T>(
conn: &PgConnection,
ap_id: DbUrl,
data: &T,
local: bool,
sensitive: bool,
) -> Result<Activity, IoError>
where
T: Serialize + Debug;
fn read_from_apub_id(conn: &PgConnection, object_id: &DbUrl) -> Result<Activity, Error>;
fn delete_olds(conn: &PgConnection) -> Result<usize, Error>;
/// Returns up to 20 activities of type `Announce/Create/Page` from the community
fn read_community_outbox(
conn: &PgConnection,
community_actor_id: &DbUrl,
) -> Result<Vec<Value>, Error>;
}
impl Activity_ for Activity {
fn insert<T>(
conn: &PgConnection,
ap_id: DbUrl,
data: &T,
local: bool,
sensitive: bool,
) -> Result<Activity, IoError>
where
T: Serialize + Debug,
{
let activity_form = ActivityForm {
ap_id,
data: serde_json::to_value(&data)?,
local: Some(local),
sensitive,
updated: None,
};
let result = Activity::create(conn, &activity_form);
match result {
Ok(s) => Ok(s),
Err(e) => Err(IoError::new(
ErrorKind::Other,
format!("Failed to insert activity into database: {}", e),
)),
}
}
fn read_from_apub_id(conn: &PgConnection, object_id: &DbUrl) -> Result<Activity, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
activity.filter(ap_id.eq(object_id)).first::<Self>(conn)
}
fn delete_olds(conn: &PgConnection) -> Result<usize, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
diesel::delete(activity.filter(published.lt(now - 6.months()))).execute(conn)
}
fn read_community_outbox(
conn: &PgConnection,
community_actor_id: &DbUrl,
) -> Result<Vec<Value>, Error> {
use lemmy_db_schema::schema::activity::dsl::*;
let res: Vec<Value> = activity
.select(data)
.filter(
sql("activity.data ->> 'type' = 'Announce'")
.sql(" AND activity.data -> 'object' ->> 'type' = 'Create'")
.sql(" AND activity.data -> 'object' -> 'object' ->> 'type' = 'Page'")
.sql(" AND activity.data ->> 'actor' = ")
.bind::<Text, _>(community_actor_id)
.sql(" ORDER BY activity.published DESC"),
)
.limit(20)
.get_results(conn)?;
Ok(res)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::{establish_unpooled_connection, source::activity::Activity_};
use lemmy_db_schema::source::{
activity::{Activity, ActivityForm},
person::{Person, PersonForm},
};
use serde_json::Value;
use serial_test::serial;
use url::Url;
#[test]
#[serial]
fn test_crud() {
let conn = establish_unpooled_connection();
let creator_form = PersonForm {
name: "activity_creator_pm".into(),
..PersonForm::default()
};
let inserted_creator = Person::create(&conn, &creator_form).unwrap();
let ap_id: DbUrl = Url::parse(
"https://enterprise.lemmy.ml/activities/delete/f1b5d57c-80f8-4e03-a615-688d552e946c",
)
.unwrap()
.into();
let test_json: Value = serde_json::from_str(
r#"{
"@context": "https://www.w3.org/ns/activitystreams",
"id": "https://enterprise.lemmy.ml/activities/delete/f1b5d57c-80f8-4e03-a615-688d552e946c",
"type": "Delete",
"actor": "https://enterprise.lemmy.ml/u/riker",
"to": "https://www.w3.org/ns/activitystreams#Public",
"cc": [
"https://enterprise.lemmy.ml/c/main/"
],
"object": "https://enterprise.lemmy.ml/post/32"
}"#,
)
.unwrap();
let activity_form = ActivityForm {
ap_id: ap_id.clone(),
data: test_json.to_owned(),
local: Some(true),
sensitive: false,
updated: None,
};
let inserted_activity = Activity::create(&conn, &activity_form).unwrap();
let expected_activity = Activity {
ap_id: Some(ap_id.clone()),
id: inserted_activity.id,
data: test_json,
local: true,
sensitive: Some(false),
published: inserted_activity.published,
updated: None,
};
let read_activity = Activity::read(&conn, inserted_activity.id).unwrap();
let read_activity_by_apub_id = Activity::read_from_apub_id(&conn, &ap_id).unwrap();
Person::delete(&conn, inserted_creator.id).unwrap();
Activity::delete(&conn, inserted_activity.id).unwrap();
assert_eq!(expected_activity, read_activity);
assert_eq!(expected_activity, read_activity_by_apub_id);
assert_eq!(expected_activity, inserted_activity);
}
}