Rust implementation of NextGraph, a Decentralized and local-first web 3.0 ecosystem
https://nextgraph.org
byzantine-fault-tolerancecrdtsdappsdecentralizede2eeeventual-consistencyjson-ldlocal-firstmarkdownocapoffline-firstp2pp2p-networkprivacy-protectionrdfrich-text-editorself-hostedsemantic-websparqlweb3collaboration
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104 lines
2.9 KiB
104 lines
2.9 KiB
2 years ago
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// Copyright (c) 2022-2023 Niko Bonnieure, Par le Peuple, NextGraph.org developers
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// All rights reserved.
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// Licensed under the Apache License, Version 2.0
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// <LICENSE-APACHE2 or http://www.apache.org/licenses/LICENSE-2.0>
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// or the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
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// at your option. All files in the project carrying such
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// notice may not be copied, modified, or distributed except
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// according to those terms.
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//! RepoStore information about each RepoStore
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//! It contains the symKeys to open the RepoStores
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//! A repoStore is identified by its repo pubkey if in local mode
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//! In core mode, it is identified by the overlayid.
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use p2p_repo::broker_store::BrokerStore;
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use p2p_repo::store::*;
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use p2p_repo::types::*;
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use p2p_net::types::*;
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use serde::{Deserialize, Serialize};
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use serde_bare::{from_slice, to_vec};
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#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, Hash)]
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pub enum RepoStoreId {
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Overlay(OverlayId),
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Repo(PubKey),
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}
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impl From<RepoStoreId> for String {
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fn from(id: RepoStoreId) -> Self {
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hex::encode(to_vec(&id).unwrap())
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}
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}
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pub struct RepoStoreInfo<'a> {
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/// RepoStore ID
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id: RepoStoreId,
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store: &'a dyn BrokerStore,
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}
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impl<'a> RepoStoreInfo<'a> {
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const PREFIX: u8 = b"r"[0];
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// propertie's suffixes
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const KEY: u8 = b"k"[0];
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const ALL_PROPERTIES: [u8; 1] = [Self::KEY];
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const SUFFIX_FOR_EXIST_CHECK: u8 = Self::KEY;
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pub fn open(
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id: &RepoStoreId,
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store: &'a dyn BrokerStore,
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) -> Result<RepoStoreInfo<'a>, StorageError> {
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let opening = RepoStoreInfo {
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id: id.clone(),
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store,
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};
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if !opening.exists() {
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return Err(StorageError::NotFound);
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}
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Ok(opening)
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}
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pub fn create(
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id: &RepoStoreId,
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key: &SymKey,
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store: &'a dyn BrokerStore,
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) -> Result<RepoStoreInfo<'a>, StorageError> {
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let acc = RepoStoreInfo {
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id: id.clone(),
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store,
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};
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if acc.exists() {
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return Err(StorageError::BackendError);
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}
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store.put(Self::PREFIX, &to_vec(&id)?, Some(Self::KEY), to_vec(key)?)?;
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Ok(acc)
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}
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pub fn exists(&self) -> bool {
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self.store
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.get(
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Self::PREFIX,
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&to_vec(&self.id).unwrap(),
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Some(Self::SUFFIX_FOR_EXIST_CHECK),
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)
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.is_ok()
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}
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pub fn id(&self) -> &RepoStoreId {
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&self.id
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}
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pub fn key(&self) -> Result<SymKey, StorageError> {
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match self
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.store
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.get(Self::PREFIX, &to_vec(&self.id)?, Some(Self::KEY))
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{
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Ok(k) => Ok(from_slice::<SymKey>(&k)?),
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Err(e) => Err(e),
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}
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}
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pub fn del(&self) -> Result<(), StorageError> {
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self.store
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.del_all(Self::PREFIX, &to_vec(&self.id)?, &Self::ALL_PROPERTIES)
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}
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}
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