Split code for modular compilation

1 files changed, 358 insertions, 0 deletions

diff --git a/src/garage/admin_rpc.rs b/src/garage/admin_rpc.rs
new file mode 100644
index 00000000..aeaf2682
--- /dev/null
+++ b/src/garage/admin_rpc.rs
@@ -0,0 +1,358 @@
+use std::sync::Arc;
+
+use serde::{Deserialize, Serialize};
+
+use garage_util::data::*;
+use garage_util::error::Error;
+
+use garage_table::*;
+
+use garage_rpc::rpc_client::*;
+use garage_rpc::rpc_server::*;
+
+use garage_core::bucket_table::*;
+use garage_core::garage::Garage;
+use garage_core::key_table::*;
+
+use crate::repair::Repair;
+use crate::*;
+
+pub const ADMIN_RPC_TIMEOUT: Duration = Duration::from_secs(30);
+pub const ADMIN_RPC_PATH: &str = "_admin";
+
+#[derive(Debug, Serialize, Deserialize)]
+pub enum AdminRPC {
+	BucketOperation(BucketOperation),
+	KeyOperation(KeyOperation),
+	LaunchRepair(RepairOpt),
+
+	// Replies
+	Ok(String),
+	BucketList(Vec<String>),
+	BucketInfo(Bucket),
+	KeyList(Vec<(String, String)>),
+	KeyInfo(Key),
+}
+
+impl RpcMessage for AdminRPC {}
+
+pub struct AdminRpcHandler {
+	garage: Arc<Garage>,
+	rpc_client: Arc<RpcClient<AdminRPC>>,
+}
+
+impl AdminRpcHandler {
+	pub fn new(garage: Arc<Garage>) -> Arc<Self> {
+		let rpc_client = garage.system.clone().rpc_client::<AdminRPC>(ADMIN_RPC_PATH);
+		Arc::new(Self { garage, rpc_client })
+	}
+
+	pub fn register_handler(self: Arc<Self>, rpc_server: &mut RpcServer) {
+		rpc_server.add_handler::<AdminRPC, _, _>(ADMIN_RPC_PATH.to_string(), move |msg, _addr| {
+			let self2 = self.clone();
+			async move {
+				match msg {
+					AdminRPC::BucketOperation(bo) => self2.handle_bucket_cmd(bo).await,
+					AdminRPC::KeyOperation(ko) => self2.handle_key_cmd(ko).await,
+					AdminRPC::LaunchRepair(opt) => self2.handle_launch_repair(opt).await,
+					_ => Err(Error::BadRequest(format!("Invalid RPC"))),
+				}
+			}
+		});
+	}
+
+	async fn handle_bucket_cmd(&self, cmd: BucketOperation) -> Result<AdminRPC, Error> {
+		match cmd {
+			BucketOperation::List => {
+				let bucket_names = self
+					.garage
+					.bucket_table
+					.get_range(&EmptyKey, None, Some(()), 10000)
+					.await?
+					.iter()
+					.map(|b| b.name.to_string())
+					.collect::<Vec<_>>();
+				Ok(AdminRPC::BucketList(bucket_names))
+			}
+			BucketOperation::Info(query) => {
+				let bucket = self.get_existing_bucket(&query.name).await?;
+				Ok(AdminRPC::BucketInfo(bucket))
+			}
+			BucketOperation::Create(query) => {
+				let bucket = self.garage.bucket_table.get(&EmptyKey, &query.name).await?;
+				if bucket.as_ref().filter(|b| !b.deleted).is_some() {
+					return Err(Error::BadRequest(format!(
+						"Bucket {} already exists",
+						query.name
+					)));
+				}
+				let new_time = match bucket {
+					Some(b) => std::cmp::max(b.timestamp + 1, now_msec()),
+					None => now_msec(),
+				};
+				self.garage
+					.bucket_table
+					.insert(&Bucket::new(query.name.clone(), new_time, false, vec![]))
+					.await?;
+				Ok(AdminRPC::Ok(format!("Bucket {} was created.", query.name)))
+			}
+			BucketOperation::Delete(query) => {
+				let bucket = self.get_existing_bucket(&query.name).await?;
+				let objects = self
+					.garage
+					.object_table
+					.get_range(&query.name, None, Some(()), 10)
+					.await?;
+				if !objects.is_empty() {
+					return Err(Error::BadRequest(format!(
+						"Bucket {} is not empty",
+						query.name
+					)));
+				}
+				if !query.yes {
+					return Err(Error::BadRequest(format!(
+						"Add --yes flag to really perform this operation"
+					)));
+				}
+				// --- done checking, now commit ---
+				for ak in bucket.authorized_keys() {
+					if let Some(key) = self.garage.key_table.get(&EmptyKey, &ak.key_id).await? {
+						if !key.deleted {
+							self.update_key_bucket(key, &bucket.name, false, false)
+								.await?;
+						}
+					} else {
+						return Err(Error::Message(format!("Key not found: {}", ak.key_id)));
+					}
+				}
+				self.garage
+					.bucket_table
+					.insert(&Bucket::new(
+						query.name.clone(),
+						std::cmp::max(bucket.timestamp + 1, now_msec()),
+						true,
+						vec![],
+					))
+					.await?;
+				Ok(AdminRPC::Ok(format!("Bucket {} was deleted.", query.name)))
+			}
+			BucketOperation::Allow(query) => {
+				let key = self.get_existing_key(&query.key_id).await?;
+				let bucket = self.get_existing_bucket(&query.bucket).await?;
+				let allow_read = query.read || key.allow_read(&query.bucket);
+				let allow_write = query.write || key.allow_write(&query.bucket);
+				self.update_key_bucket(key, &query.bucket, allow_read, allow_write)
+					.await?;
+				self.update_bucket_key(bucket, &query.key_id, allow_read, allow_write)
+					.await?;
+				Ok(AdminRPC::Ok(format!(
+					"New permissions for {} on {}: read {}, write {}.",
+					&query.key_id, &query.bucket, allow_read, allow_write
+				)))
+			}
+			BucketOperation::Deny(query) => {
+				let key = self.get_existing_key(&query.key_id).await?;
+				let bucket = self.get_existing_bucket(&query.bucket).await?;
+				let allow_read = !query.read && key.allow_read(&query.bucket);
+				let allow_write = !query.write && key.allow_write(&query.bucket);
+				self.update_key_bucket(key, &query.bucket, allow_read, allow_write)
+					.await?;
+				self.update_bucket_key(bucket, &query.key_id, allow_read, allow_write)
+					.await?;
+				Ok(AdminRPC::Ok(format!(
+					"New permissions for {} on {}: read {}, write {}.",
+					&query.key_id, &query.bucket, allow_read, allow_write
+				)))
+			}
+		}
+	}
+
+	async fn handle_key_cmd(&self, cmd: KeyOperation) -> Result<AdminRPC, Error> {
+		match cmd {
+			KeyOperation::List => {
+				let key_ids = self
+					.garage
+					.key_table
+					.get_range(&EmptyKey, None, Some(()), 10000)
+					.await?
+					.iter()
+					.map(|k| (k.key_id.to_string(), k.name.to_string()))
+					.collect::<Vec<_>>();
+				Ok(AdminRPC::KeyList(key_ids))
+			}
+			KeyOperation::Info(query) => {
+				let key = self.get_existing_key(&query.key_id).await?;
+				Ok(AdminRPC::KeyInfo(key))
+			}
+			KeyOperation::New(query) => {
+				let key = Key::new(query.name, vec![]);
+				self.garage.key_table.insert(&key).await?;
+				Ok(AdminRPC::KeyInfo(key))
+			}
+			KeyOperation::Rename(query) => {
+				let mut key = self.get_existing_key(&query.key_id).await?;
+				key.name_timestamp = std::cmp::max(key.name_timestamp + 1, now_msec());
+				key.name = query.new_name;
+				self.garage.key_table.insert(&key).await?;
+				Ok(AdminRPC::KeyInfo(key))
+			}
+			KeyOperation::Delete(query) => {
+				let key = self.get_existing_key(&query.key_id).await?;
+				if !query.yes {
+					return Err(Error::BadRequest(format!(
+						"Add --yes flag to really perform this operation"
+					)));
+				}
+				// --- done checking, now commit ---
+				for ab in key.authorized_buckets().iter() {
+					if let Some(bucket) =
+						self.garage.bucket_table.get(&EmptyKey, &ab.bucket).await?
+					{
+						if !bucket.deleted {
+							self.update_bucket_key(bucket, &key.key_id, false, false)
+								.await?;
+						}
+					} else {
+						return Err(Error::Message(format!("Bucket not found: {}", ab.bucket)));
+					}
+				}
+				let del_key = Key::delete(key.key_id);
+				self.garage.key_table.insert(&del_key).await?;
+				Ok(AdminRPC::Ok(format!(
+					"Key {} was deleted successfully.",
+					query.key_id
+				)))
+			}
+		}
+	}
+
+	async fn get_existing_bucket(&self, bucket: &String) -> Result<Bucket, Error> {
+		self.garage
+			.bucket_table
+			.get(&EmptyKey, bucket)
+			.await?
+			.filter(|b| !b.deleted)
+			.map(Ok)
+			.unwrap_or(Err(Error::BadRequest(format!(
+				"Bucket {} does not exist",
+				bucket
+			))))
+	}
+
+	async fn get_existing_key(&self, id: &String) -> Result<Key, Error> {
+		self.garage
+			.key_table
+			.get(&EmptyKey, id)
+			.await?
+			.filter(|k| !k.deleted)
+			.map(Ok)
+			.unwrap_or(Err(Error::BadRequest(format!("Key {} does not exist", id))))
+	}
+
+	async fn update_bucket_key(
+		&self,
+		mut bucket: Bucket,
+		key_id: &String,
+		allow_read: bool,
+		allow_write: bool,
+	) -> Result<(), Error> {
+		let timestamp = match bucket
+			.authorized_keys()
+			.iter()
+			.find(|x| x.key_id == *key_id)
+		{
+			None => now_msec(),
+			Some(ab) => std::cmp::max(ab.timestamp + 1, now_msec()),
+		};
+		bucket.clear_keys();
+		bucket
+			.add_key(AllowedKey {
+				key_id: key_id.clone(),
+				timestamp,
+				allow_read,
+				allow_write,
+			})
+			.unwrap();
+		self.garage.bucket_table.insert(&bucket).await?;
+		Ok(())
+	}
+
+	async fn update_key_bucket(
+		&self,
+		mut key: Key,
+		bucket: &String,
+		allow_read: bool,
+		allow_write: bool,
+	) -> Result<(), Error> {
+		let timestamp = match key
+			.authorized_buckets()
+			.iter()
+			.find(|x| x.bucket == *bucket)
+		{
+			None => now_msec(),
+			Some(ab) => std::cmp::max(ab.timestamp + 1, now_msec()),
+		};
+		key.clear_buckets();
+		key.add_bucket(AllowedBucket {
+			bucket: bucket.clone(),
+			timestamp,
+			allow_read,
+			allow_write,
+		})
+		.unwrap();
+		self.garage.key_table.insert(&key).await?;
+		Ok(())
+	}
+
+	async fn handle_launch_repair(self: &Arc<Self>, opt: RepairOpt) -> Result<AdminRPC, Error> {
+		if !opt.yes {
+			return Err(Error::BadRequest(format!(
+				"Please provide the --yes flag to initiate repair operations."
+			)));
+		}
+		if opt.all_nodes {
+			let mut opt_to_send = opt.clone();
+			opt_to_send.all_nodes = false;
+
+			let mut failures = vec![];
+			let ring = self.garage.system.ring.borrow().clone();
+			for node in ring.config.members.keys() {
+				if self
+					.rpc_client
+					.call(
+						*node,
+						AdminRPC::LaunchRepair(opt_to_send.clone()),
+						ADMIN_RPC_TIMEOUT,
+					)
+					.await
+					.is_err()
+				{
+					failures.push(node.clone());
+				}
+			}
+			if failures.is_empty() {
+				Ok(AdminRPC::Ok(format!("Repair launched on all nodes")))
+			} else {
+				Err(Error::Message(format!(
+					"Could not launch repair on nodes: {:?} (launched successfully on other nodes)",
+					failures
+				)))
+			}
+		} else {
+			let repair = Repair {
+				garage: self.garage.clone(),
+			};
+			self.garage
+				.system
+				.background
+				.spawn_worker("Repair worker".into(), move |must_exit| async move {
+					repair.repair_worker(opt, must_exit).await
+				})
+				.await;
+			Ok(AdminRPC::Ok(format!(
+				"Repair launched on {:?}",
+				self.garage.system.id
+			)))
+		}
+	}
+}