use activitypub_federation::{
core::signatures::PublicKey,
traits::{Actor, ApubObject},
- InstanceSettingsBuilder,
+ InstanceSettings,
LocalInstance,
};
use anyhow::Context;
+use diesel::PgConnection;
use lemmy_api_common::utils::blocking;
-use lemmy_db_schema::{newtypes::DbUrl, source::activity::Activity, utils::DbPool};
+use lemmy_db_schema::{
+ newtypes::DbUrl,
+ source::{activity::Activity, instance::Instance, local_site::LocalSite},
+ utils::DbPool,
+};
use lemmy_utils::{error::LemmyError, location_info, settings::structs::Settings};
use lemmy_websocket::LemmyContext;
use once_cell::sync::{Lazy, OnceCell};
});
// TODO: store this in context? but its only used in this crate, no need to expose it elsewhere
+// TODO this singleton needs to be redone to account for live data.
fn local_instance(context: &LemmyContext) -> &'static LocalInstance {
static LOCAL_INSTANCE: OnceCell<LocalInstance> = OnceCell::new();
LOCAL_INSTANCE.get_or_init(|| {
- let settings = InstanceSettingsBuilder::default()
- .http_fetch_retry_limit(context.settings().federation.http_fetch_retry_limit)
- .worker_count(context.settings().federation.worker_count)
- .debug(context.settings().federation.debug)
- .verify_url_function(|url| check_apub_id_valid(url, &Settings::get()))
+ let conn = &mut context
+ .pool()
+ .get()
+ .expect("getting connection for LOCAL_INSTANCE init");
+ // Local site may be missing
+ let local_site = &LocalSite::read(conn);
+ let worker_count = local_site
+ .as_ref()
+ .map(|l| l.federation_worker_count)
+ .unwrap_or(64) as u64;
+ let http_fetch_retry_limit = local_site
+ .as_ref()
+ .map(|l| l.federation_http_fetch_retry_limit)
+ .unwrap_or(25);
+ let federation_debug = local_site
+ .as_ref()
+ .map(|l| l.federation_debug)
+ .unwrap_or(true);
+
+ let settings = InstanceSettings::builder()
+ .http_fetch_retry_limit(http_fetch_retry_limit)
+ .worker_count(worker_count)
+ .debug(federation_debug)
+ // TODO No idea why, but you can't pass context.settings() to the verify_url_function closure
+ // without the value getting captured.
+ .http_signature_compat(true)
.build()
.expect("configure federation");
LocalInstance::new(
- context.settings().hostname,
+ context.settings().hostname.to_owned(),
context.client().clone(),
settings,
)
///
/// `use_strict_allowlist` should be true only when parsing a remote community, or when parsing a
/// post/comment in a local community.
-#[tracing::instrument(skip(settings))]
-fn check_apub_id_valid(apub_id: &Url, settings: &Settings) -> Result<(), &'static str> {
+#[tracing::instrument(skip(settings, local_site_data))]
+// TODO This function needs to be called by incoming activities
+fn check_apub_id_valid(
+ apub_id: &Url,
+ local_site_data: &LocalSiteData,
+ settings: &Settings,
+) -> Result<(), &'static str> {
let domain = apub_id.domain().expect("apud id has domain").to_string();
let local_instance = settings
.get_hostname_without_port()
return Ok(());
}
- if !settings.federation.enabled {
+ if !local_site_data
+ .local_site
+ .as_ref()
+ .map(|l| l.federation_enabled)
+ .unwrap_or(true)
+ {
return Err("Federation disabled");
}
return Err("Invalid protocol scheme");
}
- if let Some(blocked) = settings.to_owned().federation.blocked_instances {
+ if let Some(blocked) = local_site_data.blocked_instances.as_ref() {
if blocked.contains(&domain) {
return Err("Domain is blocked");
}
}
- if let Some(allowed) = settings.to_owned().federation.allowed_instances {
+ if let Some(allowed) = local_site_data.allowed_instances.as_ref() {
if !allowed.contains(&domain) {
return Err("Domain is not in allowlist");
}
Ok(())
}
-#[tracing::instrument(skip(settings))]
+#[derive(Clone)]
+pub(crate) struct LocalSiteData {
+ local_site: Option<LocalSite>,
+ allowed_instances: Option<Vec<String>>,
+ blocked_instances: Option<Vec<String>>,
+}
+
+pub(crate) fn fetch_local_site_data(
+ conn: &mut PgConnection,
+) -> Result<LocalSiteData, diesel::result::Error> {
+ // LocalSite may be missing
+ let local_site = LocalSite::read(conn).ok();
+ let allowed = Instance::allowlist(conn)?;
+ let blocked = Instance::blocklist(conn)?;
+
+ // These can return empty vectors, so convert them to options
+ let allowed_instances = (!allowed.is_empty()).then(|| allowed);
+ let blocked_instances = (!blocked.is_empty()).then(|| blocked);
+
+ Ok(LocalSiteData {
+ local_site,
+ allowed_instances,
+ blocked_instances,
+ })
+}
+
+#[tracing::instrument(skip(settings, local_site_data))]
pub(crate) fn check_apub_id_valid_with_strictness(
apub_id: &Url,
is_strict: bool,
+ local_site_data: &LocalSiteData,
settings: &Settings,
) -> Result<(), LemmyError> {
- check_apub_id_valid(apub_id, settings).map_err(LemmyError::from_message)?;
+ check_apub_id_valid(apub_id, local_site_data, settings).map_err(LemmyError::from_message)?;
let domain = apub_id.domain().expect("apud id has domain").to_string();
let local_instance = settings
.get_hostname_without_port()
return Ok(());
}
- if let Some(mut allowed) = settings.to_owned().federation.allowed_instances {
+ if let Some(allowed) = local_site_data.allowed_instances.as_ref() {
// Only check allowlist if this is a community, or strict allowlist is enabled.
- let strict_allowlist = settings.to_owned().federation.strict_allowlist;
+ let strict_allowlist = local_site_data
+ .local_site
+ .as_ref()
+ .map(|l| l.federation_strict_allowlist)
+ .unwrap_or(true);
if is_strict || strict_allowlist {
// need to allow this explicitly because apub receive might contain objects from our local
// instance.
- allowed.push(local_instance);
+ let mut allowed_and_local = allowed.to_owned();
+ allowed_and_local.push(local_instance);
- if !allowed.contains(&domain) {
+ if !allowed_and_local.contains(&domain) {
return Err(LemmyError::from_message(
"Federation forbidden by strict allowlist",
));
let ap_id = ap_id.to_owned().into();
Ok(
blocking(pool, move |conn| {
- Activity::insert(conn, ap_id, activity, local, sensitive)
+ Activity::insert(conn, ap_id, activity, local, Some(sensitive))
})
.await??,
)