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|
use std::sync::Arc;
use serde::{Deserialize, Serialize};
use crate::data::*;
use crate::error::Error;
use crate::rpc_server::*;
use crate::server::Garage;
use crate::table::*;
use crate::*;
use crate::bucket_table::*;
pub const ADMIN_RPC_PATH: &str = "_admin";
#[derive(Debug, Serialize, Deserialize)]
pub enum AdminRPC {
BucketOperation(BucketOperation),
// Replies
Ok,
BucketList(Vec<String>),
BucketInfo(Bucket),
}
impl RpcMessage for AdminRPC {}
pub struct AdminRpcHandler {
garage: Arc<Garage>,
}
impl AdminRpcHandler {
pub fn new(garage: Arc<Garage>) -> Arc<Self> {
Arc::new(Self { garage })
}
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,
_ => Err(Error::Message(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
.garage
.bucket_table
.get(&EmptyKey, &query.name)
.await?
.filter(|b| !b.deleted);
match bucket {
Some(b) => Ok(AdminRPC::BucketInfo(b)),
None => Err(Error::Message(format!("Bucket {} not found", query.name))),
}
}
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::Message(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 {
name: query.name,
timestamp: new_time,
deleted: false,
authorized_keys: vec![],
})
.await?;
Ok(AdminRPC::Ok)
}
BucketOperation::Delete(query) => {
let bucket = match self
.garage
.bucket_table
.get(&EmptyKey, &query.name)
.await?
.filter(|b| !b.deleted)
{
None => {
return Err(Error::Message(format!(
"Bucket {} does not exist",
query.name
)));
}
Some(b) => b,
};
let objects = self
.garage
.object_table
.get_range(&query.name, None, Some(()), 10)
.await?;
if !objects.is_empty() {
return Err(Error::Message(format!(
"Bucket {} is not empty",
query.name
)));
}
if !query.yes {
return Err(Error::Message(format!(
"Add --yes flag to really perform this operation"
)));
}
self.garage
.bucket_table
.insert(&Bucket {
name: query.name,
timestamp: std::cmp::max(bucket.timestamp + 1, now_msec()),
deleted: true,
authorized_keys: vec![],
})
.await?;
Ok(AdminRPC::Ok)
}
_ => {
// TODO
Err(Error::Message(format!("Not implemented")))
}
}
}
}
|
