Commit Graph

607 Commits

Author SHA1 Message Date
Aaro Altonen 09164dbced Introduce mockable ChainSync object for testing (#12480)
* Introduce mockable `ChainSync` object for testing

`mockall` allows to mock `ChainSync` and to verify that the calls made
to `ChaiSync` are firstly executed at all, that they're executed in
correct order and with correct parameters.

This allows to verify, e.g., that delegating calls directly to
`ChainSync` from `NetworkService` still calls the correct functions with
correct arguments even if `Protocol` middleman is removed.

* Add Cargo.lock

* Fix tests

* Update client/network/Cargo.toml

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update Cargo.lock

* Fix clippy and documentation

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: parity-processbot <>
2022-10-13 09:37:09 +00:00
Pierre Krieger 8920b1c5b3 Clarify the "direction" field of block requests (#12438) 2022-10-12 13:01:54 +00:00
Aaro Altonen e1e5b7037a Fix flaky service test (#12472)
Sometimes `NotificationStreamOpenened` would be received for the
other protocol before `SyncConnected` was received so when the
connection was closed, an incorrect event was read from the event
stream.
2022-10-11 15:25:12 +00:00
Pierre Krieger d61b0866ed Remove the unused light client requests (#12470)
* Remove the unused light client requests

* Add comment about new ids
2022-10-11 13:56:18 +00:00
Aaro Altonen ce9ce49bc6 Move block announcement protocol config out of Protocol (#12441)
* Move Role(s) to `sc-network-common`

* Introduce `NotificationHandshake` type

* Move block announce protocol config creation to `ChainSync`

* Include block announcement into `notification_protocols`

* Apply review comments

* Remove unneeded include

* Add missing include

* Apply review comments
2022-10-10 07:10:53 +00:00
Pierre Krieger 4a6c7aaf5b Remove "to_block" field from BlockRequests (#12447)
* Remove "to_block" field from BlockRequests

* Maybe fix the tests
2022-10-08 21:15:25 +00:00
Bastian Köcher fc3f9268f6 Upgrade pin-project (#12426)
This fixes some warnings on latest nightly.
2022-10-07 10:46:57 +00:00
Pierre Krieger d6f1bb8932 Don't send back empty proofs if light request fails (#12372) 2022-10-05 14:45:56 +00:00
Chevdor 0e388ac5b7 Bump prost to 0.11+ (#12419) 2022-10-04 21:30:45 +02:00
Adrian Catangiu 2a27545afe Beefy on-demand justifications as a custom RequestResponse protocol (#12124)
* client/beefy: create communication module and move gossip there

* client/beefy: move beefy_protocol_name module to communication

* client/beefy: move notification module under communication

* client/beefy: add incoming request_response protocol handler

* client/beefy: keep track of connected peers and their progress

* client/beefy: add logic for generating Justif requests

* client/beefy: cancel outdated on-demand justification requests

* try Andre's suggestion for JustificationEngine

* justif engine add justifs validation

* client/beefy: impl OnDemandJustificationsEngine async next()

* move beefy proto name test

* client/beefy: initialize OnDemandJustificationsEngine

* client/tests: allow for custom req-resp protocols

* client/beefy: on-demand-justif: implement simple peer selection strategy

* client/beefy: fix voter initialization

Fix corner case where voter gets a single burst of finality
notifications just when it starts.

The notification stream was consumed by "wait_for_pallet" logic,
then main loop would subscribe to finality notifications, but by that
time some notifications might've been lost.

Fix this by subscribing the main loop to notifications before waiting
for pallet to become available. Share the same stream with the main loop
so that notifications for blocks before pallet available are ignored,
while _all_ notifications after pallet available are processed.

Add regression test for this.

Signed-off-by: acatangiu <adrian@parity.io>

* client/beefy: make sure justif requests are always out for mandatory blocks

* client/beefy: add test for on-demand justifications sync

* client/beefy: tweak main loop event processing order

* client/beefy: run on-demand-justif-handler under same async task as voter

* client/beefy: add test for known-peers

* client/beefy: reorg request-response module

* client/beefy: add issue references for future work todos

* client/beefy: consolidate on-demand-justifications engine state machine

Signed-off-by: acatangiu <adrian@parity.io>

* client/beefy: fix for polkadot companion

* client/beefy: implement review suggestions

* cargo fmt and clippy

* fix merge damage

* fix rust-doc

* fix merge damage

* fix merge damage

* client/beefy: add test for justif proto name

Signed-off-by: acatangiu <adrian@parity.io>
2022-10-03 13:00:57 +00:00
Aaro Altonen 4c19c13d05 Move transactions protocol to its own crate (#12264)
* Move transaction protocol to its own crate

* Update Cargo.lock

* Fix binaries

* Update client/network/transactions/src/lib.rs

Co-authored-by: Dmitry Markin <dmitry@markin.tech>

* Update client/service/src/builder.rs

Co-authored-by: Bastian Köcher <info@kchr.de>

* Apply review comments

* Revert one change and apply cargo-fmt

* Remove Transaction from Message

* Add array-bytes

* trigger CI

* Add comment about codec index

Co-authored-by: Dmitry Markin <dmitry@markin.tech>
Co-authored-by: Bastian Köcher <info@kchr.de>
2022-09-26 12:10:09 +00:00
Xavier Lau 86198c5471 Use array-bytes for All Array/Bytes/Hex Operations (#12190)
* Use `array-bytes` for All Array/Bytes/Hex Operations

Signed-off-by: Xavier Lau <xavier@inv.cafe>

* Reorder

* Self Review

* Format

* Fix Tests

* Bump `array-bytes`

* Optimize large test res

Signed-off-by: Xavier Lau <xavier@inv.cafe>
Co-authored-by: parity-processbot <>
2022-09-21 06:12:20 +00:00
Sergej Sakac e4b6f4a66d BREAKING: Rename Origin (#12258)
* BREAKING: Rename Origin

* more renaming

* a bit more renaming

* fix

* more fixing

* fix in frame_support

* even more fixes

* fix

* small fix

* ...

* update .stderr

* docs

* update docs

* update docs

* docs
2022-09-20 22:13:09 +00:00
Dmitry Markin ea1c8bd2db Import target block body during warp sync (#12300)
* Receive and import target block body

* Request target block

* minor: wording

* Check for block body in the test

* Import target block justifications

* Fix: do not fail block validation if no justifications received

* Fix: import target blocks without justifications

Co-authored-by: arkpar <arkady.paronyan@gmail.com>
2022-09-20 15:05:44 +00:00
Aaro Altonen 103ac1bc84 Include Bitswap into request response protocols (#12262) 2022-09-15 07:27:56 +00:00
Aaro Altonen b494167d16 Move bitswap to its own crate (#12242)
* Introduce `sc-network-bitswap`

Move the bitswap protocol out of `sc-network` to its own crate.

* Improve test coverage

* Remove mention of bitswap from `sc-network`

* Fix documentation

* Fix clippy and remove the void dependency

* Remove unneeded trait bound and bump prost to 0.11
2022-09-13 08:02:31 +00:00
Nazar Mokrynskyi efa04ed70d Enforce blocks response limit (#12146) 2022-09-05 14:06:20 +00:00
Dmitry Markin 24d09fe8c7 Use custom type for ProtocolName (#12172)
* Add ProtocolName custom type

* Use new ProtocolName in sc_network_common

* Use new ProtocolName in sc_network

* Use new ProtocolName for BEEFY and GRANDPA

* Use new ProtocolName for notifications

* Use new ProtocolName in sc_network (part 2)

* Use new ProtocolName in sc_network_gossip

* Use new ProtocolName in sc_offchain

* Remove unused imports

* Some more fixes

* Add tests

* Fix minor import issues

* Re-export ProtocolName in sc_network

* Revert "Re-export ProtocolName in sc_network"

This reverts commit 8d8ff71927e7750757f29c9bbd88dc0ba181d214.

* Re-export ProtocolName in sc_network

* Remove dependency on sc-network-common from beefy-gadget
2022-09-03 20:34:47 +00:00
Liu-Cheng Xu 9bbf8efd02 Only log when the transaction is actually to be propagated (#12158)
The logging before is confusing as it says Propagating but it's not in fact when gossip_enabled is
false. Now it's also consistent with `propagate_transactions` below.
2022-08-31 22:31:05 +02:00
Sebastian Kunert 800bc5cd8c Simplify trait bounds in network to prepare for collator-rpc (#12082)
* Hack towards PoC

* Abstract away runtime requirement

* blockchainevents

* Remove bitswap

* Remove unused sync more

* Remove unused features in network

* Re-enable bitswap change

* Remove `Chain` trait bound

* Reimplement blockchain-rpc-events

* Move network to cumulus

* Make AuthorityDiscovery async

* Remove `ProofProvider` requirement from network behaviour

* Extract bitswap

* Adjustments after merge

* Remove HeaderMetadata trait from network

* Introduce NetworkHeaderBackend

* Add comments

* Improve comments

* Move NetworkHeaderBackend to new module

* Improve naming, remove redundand send + sync

* Clean up generics

* Fix CI

* Improve comment and readability

* Remove NetworkHeaderBackend

* Fix Cargo.lock

Co-authored-by: Sebastian Kunert <skunert@Sebastians-MacBook-Pro.fritz.box>
2022-08-31 14:55:46 +02:00
Dmitry Markin 224562729d Make NetworkService::add_reserved_peer() accept MultiaddrWithPeerId (#12102)
* Make `add_reserved_peer()` accept `MultiaddrWithPeerId`

* minor: cargo fmt

* minor: error to string conversion

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
2022-08-29 11:54:57 +00:00
Jędrzej Kula 39db847714 Additional constraints for NotificationSender (#12121)
Co-authored-by: Jedrzej Kula <jedrzej.kula@cardinals.cc>
2022-08-29 10:01:37 +02:00
dependabot[bot] 75a76d967b Bump serde_json from 1.0.79 to 1.0.85 (#12079)
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.79 to 1.0.85.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.79...v1.0.85)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2022-08-26 09:32:20 +02:00
dependabot[bot] 45655e485b Bump async-trait from 0.1.51 to 0.1.57 (#11948)
Bumps [async-trait](https://github.com/dtolnay/async-trait) from 0.1.51 to 0.1.57.
- [Release notes](https://github.com/dtolnay/async-trait/releases)
- [Commits](https://github.com/dtolnay/async-trait/compare/0.1.51...0.1.57)

---
updated-dependencies:
- dependency-name: async-trait
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2022-08-26 09:31:56 +02:00
dependabot[bot] 5318bf53d4 Bump parking_lot from 0.12.0 to 0.12.1 (#12098)
Bumps [parking_lot](https://github.com/Amanieu/parking_lot) from 0.12.0 to 0.12.1.
- [Release notes](https://github.com/Amanieu/parking_lot/releases)
- [Changelog](https://github.com/Amanieu/parking_lot/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Amanieu/parking_lot/compare/0.12.0...0.12.1)

---
updated-dependencies:
- dependency-name: parking_lot
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2022-08-25 23:52:19 +02:00
Bastian Köcher e62e670631 Print bootnode mismatch message as warning (#12075)
* Print bootnode mismatch message as `warning`

* Fix test :thinking_face:

* Remove wrong warning
2022-08-23 22:22:58 +02:00
Nazar Mokrynskyi b20f83c18f Network sync refactoring (part 7) (#12006)
* Move `MultiaddrWithPeerId` and related parsing functions into `sc-network-common`, remove dependency on `sc-network` from `sc-chain-spec`

* Remove dependency on `sc-network` from `sc-offchain`

* Remove dependency on `sc-network` from `sc-network-gossip`
2022-08-22 15:53:14 +00:00
Squirrel a68a80fbae declone and close the door (#12035)
* declone and close the door

* cargo fmt

* remove brackets
2022-08-15 19:38:36 +00:00
Nazar Mokrynskyi a685582bfd Network sync refactoring (part 6) (#11940)
* Extract `NetworkKVProvider` trait in `sc-authority-discovery` and remove unnecessary dependency

* Extract `NetworkSyncForkRequest` trait in `sc-finality-grandpa`

* Relax requirements on `SyncOracle` trait, remove extra native methods from `NetworkService` that are already provided by trait impls

* Move `NetworkSigner` trait from `sc-authority-discovery` into `sc-network-common` and de-duplicate methods on `NetworkService`

* Move `NetworkKVProvider` trait from `sc-authority-discovery` into `sc-network-common` and de-duplicate methods on `NetworkService`

* Minimize `sc-authority-discovery` dependency on `sc-network`

* Move `NetworkSyncForkRequest` trait from `sc-finality-grandpa` to `sc-network-common` and de-duplicate methods in `NetworkService`

* Extract `NetworkStatusProvider` trait and de-duplicate methods on `NetworkService`

* Extract `NetworkPeers` trait and de-duplicate methods on `NetworkService`

* Extract `NetworkEventStream` trait and de-duplicate methods on `NetworkService`

* Move more methods from `NetworkService` into `NetworkPeers` trait

* Move `NetworkStateInfo` trait into `sc-network-common`

* Extract `NetworkNotification` trait and de-duplicate methods on `NetworkService`

* Extract `NetworkRequest` trait and de-duplicate methods on `NetworkService`

* Remove `NetworkService::local_peer_id()`, it is already provided by `NetworkStateInfo` impl

* Extract `NetworkTransaction` trait and de-duplicate methods on `NetworkService`

* Extract `NetworkBlock` trait and de-duplicate methods on `NetworkService`

* Remove dependencies on `NetworkService` from most of the methods of `sc-service`

* Address simple review comments
2022-08-09 18:28:32 +00:00
Nikos Kontakis 20c49b20a7 Rename --pruning and --keep-blocks to be more similar to one another (#11934)
* rename prunning and keep-blocks flags

* Add aliases in keep-blocks and pruning for backward compatibility

* Rename in code variables from  and  to  and
2022-08-08 09:31:26 +00:00
Dmitry Markin a1ee0fca0b sync protocol now can have negotiated fallback name (#11982) 2022-08-05 09:48:05 +00:00
Dmitry Markin 6eda842cf0 Change on-the-wire protocol names to include genesis hash & fork id (#11938)
* Rename transactions protocol to include genesis hash

* Add protocol name generation to sc_network::utils

* Use utils functions for transactions protocol name generation

* Extract protocol name generation into public module

* Use sc_network::protocol_name::standard_protocol_name() for BEEFY and GRANDPA

* minor: add missing newline at EOF

* Change block-announces protocol name to include genesis_hash & fork_id

* Change protocol names to include genesis hash and fork id

Protocols changed:
    - sync
    - state
    - light
    - sync/warp

* Revert "Use sc_network::protocol_name::standard_protocol_name() for BEEFY and GRANDPA"

This reverts commit cd60a95a3face397e1b67f4bc95dd0f2b581bfae.

* Get rid of `protocol_name` module
2022-08-05 06:50:57 +00:00
Nazar Mokrynskyi 56f16f5500 Network sync refactoring (part 5) (#11825)
* Make `chain_sync` an explicit networking parameter instead of offering factory method

* Derive `Copy` on `SyncMode` and remove cloning
2022-07-29 20:17:49 +00:00
Adrian Catangiu 1c6867c6ed Lean BEEFY to Full BEEFY - don't skip (older) mandatory blocks and import justifications (#11821)
* client/beefy: don't accept vote for older rounds

* client/beefy: clean up and reorg the worker struct

* client/beefy: first step towards Full BEEFY

The first step from Lean->Full BEEFY is to have the worker
enforce uninterrupted line of BEEFY finalized mandatory blocks.

There is one mandatory block per session (the first block in the
session). As such, votes processing and votes generation now
enforces that all mandatory blocks are finalized in strict
monotonically increasing sequence and no block 'N' will be worked
on if there is any GRANDPA finalized but BEEFY non-final mandatory
block 'M', where 'M < N'.

Implementation details:

- Introduced 'VoterOracle' to separate the voting decisions logic,
  and track new/pending sessions.

- New sessions get queued up with the worker operating either:
  1. up-to-date - all mandatory blocks leading up to current GRANDPA
     finalized: queue has ONE element, the 'current session' where
     `mandatory_done == true`,
  2. lagging behind GRANDPA: queue has [1, N] elements, where all
     `mandatory_done == false`.
     In this state, everytime a session gets its mandatory block
     BEEFY finalized, the session is popped off the queue,
     eventually getting to operating mode `1. up-to-date`.

- Votes get triaged and those that fall withing the `VoterOracle`
  allowed window get processed, the others get dropped if stale,
  or buffered for later processing (when they reach the window).

- Worker general code was also updated to fall in one of two roles:
  1. react to external events and change internal 'state',
  2. generate events/votes based on internal 'state'.

Signed-off-by: acatangiu <adrian@parity.io>

* client/beefy: sketch idea for block import and sync

Signed-off-by: acatangiu <adrian@parity.io>

* client/beefy: add BEEFY block import

* client/beefy: process justifications from block import

* client/beefy: add TODOs for sync protocol

* client/beefy: add more docs and comments

* client/beefy-rpc: fix RPC error

* client/beefy: verify justification validity on block import

* client/beefy: more tests

* client/beefy: small fixes

- first handle and note the self vote before gossiping it,
- don't shortcircuit on err when processing pending votes.

* client/beefy: remove invalid justifications at block import

* todo: beefy block import tests

* RFC: ideas for multiple justifications per block

* Revert "RFC: ideas for multiple justifications per block"

This reverts commit 8256fb07d3124db69daf252720b3c0208202624d.

* client/beefy: append justif to backend on block import

* client/beefy: groundwork for block import test

* client/beefy: groundwork2 for block import test

* client/beefy: groundwork3 for block import test

* client/beefy: add block import test

* client/beefy: add required trait bounds to block import builder

* remove client from beefy block import, backend gets the job done

Signed-off-by: acatangiu <adrian@parity.io>
2022-07-29 15:47:21 +00:00
Dmitry Markin 2d8cf7b0e8 Always allocate slots for reserved nodes (#11909)
* Always allocate slots for reserved nodes

* minor: replace no-slot peer counter with a set
2022-07-29 12:36:48 +00:00
Liu-Cheng Xu f44e4b3d48 Enrich the sync log on handling the block request (#11747)
Add more info to the log to help debug the issue like
https://github.com/paritytech/substrate/issues/11732.

Co-authored-by: Bastian Köcher <info@kchr.de>
2022-07-28 17:31:47 +02:00
Dmitry Markin afc723cc30 Clarify wrong bootnode peer ID error message (#11872) 2022-07-22 15:08:52 +03:00
Dmitry Markin b7ecd1af85 Cleanup light client leftovers (#11865)
* Remove --light cli option

* Cleanup light client leftovers

* Remove commented-out code and clean-up more light client leftovers

* Fix formatting with `cargo +nightly fmt`

* Remove FIXME regarding db directory structure

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
2022-07-21 08:36:00 +00:00
Nazar Mokrynskyi f514bc3892 Ignore boot and reserved nodes with peer ID the same as in local node itself (#11851) 2022-07-16 23:24:46 +02:00
Arkadiy Paronyan 74f0f45bb1 Fixed sync target detection (#11817)
* Fixed sync target detection

* Always report sync_target metric

* Clamp median across all peers
2022-07-15 11:55:18 +00:00
Nazar Mokrynskyi 5896072b86 Network sync refactoring (part 4) (#11412)
* Remove direct dependency of `sc-network` on `sc-network-light`

* Move `WarpSyncProvider` trait and surrounding data structures into `sc-network-common`

* Move `WarpSyncProvider` trait and surrounding data structures into `sc-network-common`

* Create `sync` module in `sc-network-common`, create `ChainSync` trait there (not used yet), move a bunch of associated data structures from `sc-network-sync`

* Switch from concrete implementation to `ChainSync` trait from `sc-network-common`

* Introduce `OpaqueStateRequest`/`OpaqueStateResponse` to remove generics from `StateSync` trait

* Introduce `OpaqueBlockRequest`/`OpaqueBlockResponse`, make `scheme` module of `sc-network-sync` private

* Surface `sc-network-sync` into `sc-service` and make `sc-network` not depend on it anymore

* Remove now unnecessary dependency from `sc-network`

* Replace crate links with just text since dependencies are gone now

* Remove `warp_sync` re-export from `sc-network-common`

* Update copyright in network-related files

* Address review comments about documentation

* Apply review suggestion

* Rename `extra_requests` module to `metrics`

Co-authored-by: Bastian Köcher <info@kchr.de>
2022-07-12 20:34:17 +00:00
Roman 1902dc169d Upgrade libp2p to 0.46.1 (#11787)
* Update libp2p to 0.46.0

* Update libp2p to 0.46.1

* Fix telemetry initialization

* Fix tests
2022-07-12 17:00:00 +00:00
Arkadiy Paronyan a1c60f0909 sync: Fixed clearing subsequent ranges (#11815)
* sync: Fixed clearing subsequent ranges

* Warp sync fix

* Better documentation
2022-07-12 11:14:42 +00:00
Arkadiy Paronyan 64ebc12a3f Fix clearing queued blocks in the sync module (#11763) 2022-07-07 14:24:06 +00:00
Nathan Whitaker 421b4b63d0 Avoid a duplicate block request when syncing from a fork (#11094)
* Separate queueing blocks for import from removal

* Add regression tests

* Remove unnecessary log

* Clear queued blocks when processed

* Move check out of match block

* Track queued block ranges

* Update client/network/sync/src/blocks.rs

* Update client/network/sync/src/blocks.rs

* Update client/network/sync/src/blocks.rs

* Update client/network/sync/src/blocks.rs

* FMT

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Bastian Köcher <info@kchr.de>
2022-06-25 00:21:07 +02:00
Roman 1988c4ac1d Upgrade to libp2p 0.45.1 (#11682)
* Upgrade to libp2p 0.45.1

* Limit max_negotiating_inbound_streams to 512

* Upgrade prost-build to 0.10

* Set max_negotiating_inbound_streams to 2048

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Fix authority discovery protobuf

* Fix comments in authority-discovery schema

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Add a comment about transport initialization

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
2022-06-17 13:47:14 +00:00
Nazar Mokrynskyi 9765f200cb Improve docs on --keep-blocks CLI parameter and related data structures (#11611)
* Improve docs on `--keep-blocks` CLI parameter and related data structures

* Update client/db/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
2022-06-08 10:48:46 +02:00
Bastian Köcher dbf497f06d Sync: Improve major sync detection (#11547)
* Sync: Improve major sync detection

When we still have a full import queue, we should still report that we are in major sync mode,
otherwise validators may will already start producing blocks.

* Use median

* Review comments
2022-05-31 19:29:00 +01:00
Nathan Whitaker 3502bc5c1d Return a successful response on repeated small block request (#11429) 2022-05-18 09:42:53 +02:00
Qinxuan Chen fe4acb7924 Prune some duplicated dependencies in the dep graph (#11433)
Signed-off-by: koushiro <koushiro.cqx@gmail.com>
2022-05-18 07:23:15 +00:00