* Import cw3-flex-multisig and cw4-group contracts
* Add release_funds to coconut-bandwidth-contract
* Create contract.rs file
* Add cw multi test and a test that uses it
* Use mnemonic for coconut mode too
* Stricter access to config file, which contains mnemonic
* Update tests
* Remove signed deposits dir after merging that into sql db
* Clippy nits
* More clippy
* Remove backtraces features to pass clippy tests
* Merge the same mnemonic for rewarding and coconut
* Simplify things, letting network monitor use testnet-mode with gateways
* Unify the nymd clients
* Sqlx common storage for buying/consuming credentials
* Link credential storage to credential client
* Trigger rewarded_set update on bootstrap error
* Fix bug on message signing
* Simplify coconut feature in code and set it in validator-api
* Update some local consts
* Link clients to credential storage
* Simplify sql query and change socks5 too
* Update attr handling such that public ones are usable
* Normalize test addresses
* Fix clippy
* Merge storages for (non)coconut creds
* Fmt miss
* Disable wasm client support for now
Co-authored-by: durch <durch@users.noreply.github.com>
* Add placeholder client for implementing coconut interactions
* Add db for persistance
* Add nymd client
* Add new coconut-bandwidth contract
* Call deposit function
* Introduce error handling
* Call the old flow of getting a signature
* List available tx hashes
* Add signed req in body
* Save signature received
* Add event generation
* Checks in validator-api
* Fail with error instead of panic in validator-api route
* Fix contract address and small bug
* Add file db for storing previous signatures
* Encrypt and store data in validator-api
* Decrypt the received signature
* Remove tx hashes after getting credentials
* Small listing changes in client
* Change response so that it easier to serialize
* Error message is sent to client for display
* Remove already signed error and return the previous sig
* Merge signature with deposit data in client
* Entrypoint for getting the encrypted signature
* Refactor blinding stuff so that it can be backed up
* Backed up the blind sign request
* Client can re-request the encrypted signature shares
* Update crypto features
* Fix clippy
* Activate instantiate test and remove unused code
* Add tx tests
* Add verification key endpoint test
* Voucher consistency test
* Test for some errors and a race condition on blind signing
* Refactor and add client trait for enabling better testing env
* Test some more of blind sign
* Finished testing all extract_encryption_key paths
* Split into function test and endpoint test
* Test for correct signature
* Test for state functions
* Remove print
* Test blind_sign endpoint
* Test for cached signature endpoint
* Stricter types in voucher
* Rename signature with partial_bandwidth_credential
* Extra route levels
* Length check and remove some unused code from coconut interface
* Renamed coconut-bandwidth common crate
* Renamed verification_key to identity_key
* Use const instead of hardcoded values
* Use type aliases for crypto algorithms
* Remove unused mods, until needed
* Remove unneeded unwrap
* Fix some coconut issues that were blocking the wasm client build
* Move from sled to existing sql database
* Update tests for new db type
* Fix wasm for coconut too
* Remove sled from dependencies
* Save gateway owner for later use in erc20 bandwidth request
* Pass owner in network monitor
* Switch to variable length owner address
* Add erc20 bridge contract in validator client
* Check bandwidth credential refers to gateway
* Check the owner of the gateway from the eth event
* Fix wasm client
* Hack to avoid unused warning on coconut path
* Hacked, one-time payment
* Remove print
* Update arg format
* Fix token check
* Fix native template
* Use utokens instead of full token
... when talking to eth
* Fix parse event for new field
* Fix socks5 template
* Add estimation of gas call
* Make fs backup more reliable
* Fix clippy
* Fix unused import
* Update waiting time
* Remove defaults from run, as it they should be set on init
* Remove debugging prints
* Replaced unwrap with error
* Fix build
* Make eth contract address dependent of network
* Use tokio for sleep
* Add approve before spending token on bandwidth
* Put bandwidth claim only at the beginning of the process
* Fix clippy on relevant lints
return_self_not_must_use still produces errors, but that will be
auto-fixed once the change to move it to pedantic is released to beta
channel
* Run fmt
* Removed outdated constant
* ClaimFreeTestnetBandwidth ClientControlRequest
* Configuration option for the testnet mode in gateway
* Made testnet mode deserialize to default value if not present
* Fixed testnet mode override
* Testnet config options for clients and validator api
* Changed error message for when gateway is not using testnet mode
* Incorporated testnet mode into gateway client
* Activating testnet mode based on config values
* Allowing clippy warnings
* Fixed use of moved value in wasm build
Co-authored-by: Bogdan-Ștefan Neacșu <bogdan@nymtech.net>
* Remove check for bandwidth for incoming packets
We should only accunt for packets that the client inputs to the mixnet
* Introduce BandwidthController for both types of bandwidth creds
* Add some non-coconut token bandwidth handling
* Use thiserror for gateway-client lib
* Add error handling
* Unable to build for wasm for now
* Fix wasm strange error
* Disable non-coconut credentials for wasm client
* Check for status and throw the error up
* Send encrypted token cred from client
* Gateway receive message and signature validation
* Put the correct amount of tokens that were burned
* [ci skip] Generate TS types
* Eth endpoint and secret key as config parameters
* Add eth_endpoint config argument for gateway
* Update test as well
* Separate panicable code from the safe one
* Move some bandwidth controller panics up the call stack
* Save contract corresponding to the eth endpoint
* Fix template
* Pass the web3 interface as well
* Made event reads possible in gateway
* Add checks for event data
* Cosmos contract for double spending prevention
* Add workflow for the new contract
* Add validator rest URL to config
* Rename eth_events to erc20_bridge
* Pass cosmos mnemonic as well, and put the nymd client in ERC20Bridge
* Call cosmos contract for final verification
* Ask for config parameters in cli
* Fix various stuff
* Increase timeout to allow gateway to check the two chains
* Put some logs for the new flow
* Set consumed bandwidth invariantly of coconut feature
* Fix clippy error
* Add non-coconut checks
* Use 2018 rust instead of 2021
* More verbose nymd error
* Explicitly specify TOKENS_TO_BURN constant
* Put eth burn function in a constant
* Replace to_vec & append with iter & chain
* Test for (de)serialization of TokenCredential
* Minor rename
* Separate credential creation from bandwidth claiming
* Switch from panics to errors when claiming coconut bandwidth
* Another append changed to chain
* Update QA cosmos contract address
* Simplify build/test/clippy separation on coconut feature
* Fix bad features arg positioning
* Use the start_after in cosmos contract query
* Set a limit in line with a range on cosmos queries
* Added unit tests for new cosmos contract
* Fix bandwidth_remaining comparation
* Get remaining bandwidth from gateway
* Add contract build flag
* Add a useful info log
* Use a more robust eth depth for release builds
* Include recipt logs in error message
* Fix clippy for tests
* Use Arc instead of clone
* Rename as_bytes to to_bytes
* Make signature verification in contract more verbose
* Missed rename of paging constant
* Fix gateway start with coconut enabled
* Rename function to claim_token
* Simplify nymd client setup
* Check with block buffer on gateway as well
* Update comment of double spending protection
* Correct contract address
* Backup the keypairs used for buying tokens, in case of error cases
* Don't take any chances with the gateway timeout
* [ci skip] Generate TS types
* Updated cosmos contract to latest QA address
* Add cli options for eth
* Update network monitor timeout value as well
Co-authored-by: neacsu <neacsu@users.noreply.github.com>
* Sqlx struct stub
* Initial schema
* Initial error enum
* Managed for persisted shared keys
* Initial inbox manager
* Comments
* Using new database in clients handler
* Extending gateway storage API
* tokio::main + placeholder values
* Removed old client store
* Simplified logic of async packet processing
* Renamed table + not null restriction
* BandwidthManager
* Removed sled dependency
* Using centralised storage for bandwidth
* Dead code removal
* WIP connection_handler split and simplification
Maybe it doesn't look like it right now, but once completed it will remove bunch of redundant checks for Nones etc
* Further more explicit clients handler split
* Minor cleanup
* Temporary store for active client handles
* Fixed error types
* Error trait on iv and encrypted address
* Authentication and registration moved to the handler
* Removal of clients handler
* Further logic simplification + returned explicit bandwidth values
* Further cleanup and comments
* Updated config with relevant changes
* Basic bandwidth tracking in client
* FreshHandle doc comments + fixed stagger issue
* Removed side-effects from .map
* More doc comments
* Database migration on build
* Increased default claimed bandwidth
* Renaming
* Fixed client determining available bandwidth
* Removed dead sql table that might be used in the future
* Windows workaround
* Comment
* Return error rather than cap credential
* Added separate gateway active set size
* Grabbing contract state
* Defined PartialOrd on MixnodeBond and GatewayBond
* Some initial stub for active set
* Unit tests for mixnode and gateway bond partialord implementation
* Obtaining active sets
* Active nodes routes
* Additional methods on validator client
* Added state migration
* Feature locking unused import
* Fixed State test fixture
* Included block height for partial_ord
* Missing post-merge imports
* api on the client for active nodes
* Native/socks5/wasm clients using active nodes
* Rewarding only active nodes
* Updated validator client StateParams definition
* Gateway active set size
* Contract migration update
* Cargo fmt
* Updated TauriStateParams
* [ci skip] Generate TS types
Co-authored-by: jstuczyn <jstuczyn@users.noreply.github.com>
* Update hmac and blake3
* Remain paranoid for `0.*` crates
* Most paranoid versions :)
* Updated aes and using published version of blake3
Co-authored-by: Jędrzej Stuczyński <jedrzej.stuczynski@gmail.com>
* Call perform_initial_authentication instead of register in clients
* Refactor the register/authenticate functions a bit
* Introduce Bandwidth request type
* Add encryption layer to cred
* Remove cred pass and check from handshake
* Replaced unreachable! with error
* Changed decrypt_tagged signature to not take mutable ownership of data
* Put handle_bandwidth work inside a function
* Add check before unwrap
* Remove unnecessary async
* Decouple bandwidth credential from authentication
* Use new_error for ServerResponse:Error
* Send a fresh IV each time the BandwidthCredential request is sent
* Remove unwrap of bincode::serialize
* Add comment regarding Bandwidth response
* Remove _mut from naming
* Leave Debug trait alone, as the initial error doesn't reproduce anymore
* Pass iv as Vec<u8> instead of base58 string
* Renamed AuthenticationIV to IV, as it is now used for more the just authentication
* Did some IV refactorization
* Calculating gas fees
* Ability to set custom fees
* Added extra test
* Removed commented code
* Moved all msg types to common contract crate
* Temporarily disabling get_tx method
* Finishing up nymd client API
* Comment fix
* Remaining fee values
* Some cleanup
* Removed needless borrow
* Fixed imports in contract tests
* Moved error types around
* New ValidatorClient
* Experiment with new type of defaults
* Removed dead module
* Dealt with unwrap
* Migrated mixnode to use new validator client
* Migrated gateway to use new validator client
* Mixnode and gateway adjustments
* More exported defaults
* Clients using new validator client
* Fixed mixnode upgrade
* Moved default values to a new crate
* Changed behaviour of validator client features
* Migrated basic functions of validator api
* Updated config + fixed startup
* Fixed wasm client build
* Integration with the explorer api
* Removed tokio dev dependency
* Needless borrow
* Fixex wasm client build
* Fixed tauri client build
* Needless borrows
* Fixed client upgrade print
* Removed redundant comments
* Made note on aggregated verification key into a doc comment
* Removed mixnet contract references from verloc
* Modified default validators structure
* Reformatted validator-api Cargo.toml file
* Removed commented code
* Made the doc comment example a no-run
* Fixed a upgrade print... again
* Adjusted the doc example
* Removed unused import
* Put endpoints and contract address in one place
* Put common ports in one place
* Split cache version from route
* Share validator-api port value between server and client
* Put BECH32 prefix in defaults
* Put DENOM in defaults
* Put network monitor address in defaults
* Fix clippy
* Fix another clippy + tests import of DENOM
* Update the version to 0.11.0 for non-upgradable crates
* Fix target version for the current upgrade functions
* Upgrade native client
* Upgrade socks5 client
* Upgrade mixnode
* Upgrade gateway
* Basic storage stub
* New models for new node status api
* Route handling
* Mounting new routes
* Missing selective commit
* Moved network monitor related files to separate package
* Starting to see some sqlx action
* Schema updates
* Log statement upon finished migration
* Removed old diesel related imports
* Converted mixnode cache initialisation into a fairing
* Moved cache related functionalities to separate package
Also defined staging there
* Created run method for validator cache + removed unwrap
* Removed old node-status-api types and left bunch of todo placeholders in their place
* Fixed managing validatorcache
* Status reports are starting to get constructed
* Submitting some dummy results to the database
* Removing duplicate code for generating reports
* Removed statuses older than 48h
* Initial attempt at trying to obtain reports for all active nodes
* Removed duplicates from the full report
* Grabbing uptime history
* Updating historical uptimes of active nodes
* Updated sqlx-data.json
* Removed all placeholder foomp owner values
* Changed Layer serde behaviour for easier usage
* Extended validator api config
* Initial (seems working !) integration with network monitor
* Added database path configuration to config
* Using ValidatorCache in NetworkMonitor
* Flag indicating whether validator cache has been initialised
* Introduced a locla-only route for reward script to perform daily chores
* Flag to save config to a file
* Moved spawning of receiving future to run method rather than new
* Removed arguments that dont make sense to be configured via CLI
* Removed dead code from config file
* More dead code removal
* Added validator API to CI
* Corrected manifest-path arguments
* Constructing network monitor by passing config
* Combined validator API CI with the main CI file
* Using query_as for NodeStatus
* Checking if historical uptimes were already calculated on particular day
* Making id field NOT NULL
* More query_as! action
* Updated sqlx-data.json
* Removed unused chrono feature
* Renamed the migration file
* Changed default validator endpoint to point to local validator
* Removing unnecessary clone
* More appropriate naming
* Removed dead code
* Lock file updates
* Updated network monitor address in contract code
* Don't stage node status api if network monitor is disabled
* cargo fmt
* Updated all license notices to SPDX
* Add validator-api common client
* Call validator-api from different clients for gateway topology
* Call validator-api from different clients for mixnode topology
* Use consts for the validator-api queries
* Rename the new query_validator function to query_validator_api
* Add mut to mixnode validator client
* Add refreshValidatorAPIGateways as a way to get the gateways...
... from validator-api
* Add refreshValidatorAPIGateways as a way to get the mixnodes...
... from validator-api
* Add yet another mut
* Change the port to validator-api service when querying the topology
* Add parsing check on the config phase...
... to make sure the validator URLs are in the correct format.
* Fix another clippy error
* Use all provided validators instead of just the first one
* The mutable reference was not actually needed, so remove it
* Use global variable for validator-api port
* Use url crate for checking the format and changing the port
* Use URL for parsing and move constants of validator-api to index.ts...
... until we find a way to link to the values from the validator-api
crate.
* Change global variables naming and have the API version into each API query
* Revert the changes to the index on connect...
... as they were working correctly before.
* Use all provided validators for mixnodes as well
* Remove location and layer
* Modified NymConfig trait to make id optional
* Basic validator-api config definition
* Optionally using the config during startup + flag to enable monitoring
* Connecting to gateway with a timeout
* Added address value to InvalidAddress error
* Initial updated network monitor (does not submit results yet)
* Created client for node status api
* Changed default address to the local one
* Removed old validator client
* Renamed validator client rest to validator client
* Print conversion warnings using Display rather than Debug formattingn
* WIP for adding owner field in monitor
* Preserving changes before branch switch
* Keeping track of node owners during monitoring + using those for node status api
* Removed temporary log statement
* Dont notify node status api if good nodes are broken
* Changed default monitor interval to 5min
* Post merge issues
* Allowing dead version field in seocksrequest
* Updated monitor run interval to 15min
* Reporting gateways and mixnodes separately with the new api
* Unused imports
* Decreased testing interval to temporarily bypass the silent timeout issue
* Formattingn
* Rust half done
* Removed the temporary 'test'
* Using multiple validator endpoints in the javascript client
* Dont attempt any switches with a single validator endpoint
* Removed the unused temporary function
* Updated validator-client version
* Updated all non-breaking dependencies
* Updated common/crypto dependencies
* Updated all tokio [and associated] dependencies to most recent version
* Bumped version of rand_distr
* Fixed api changes in tests
* Made clippy happier about the acronym
* Fixed the type while trying to make clippy even happier
* nightly cargo fmt
* Removed reputation field from existing topology
* ibid for registration time
* Basic bond to topology conversion
* Made existing tests compilable
* Added owner and stake fields to mix and gateway topology entries
* Moved node conversion to topology crate
* Added mixnet contract field to clients configs
* topology refresher trying to use new validator
* Removed clients depepdency on the old validator client
* Removed mixnode dependency on the old validator client
* Removed gateway dependency on the old validator client
* Removed location field fron mixnode and gateway configs
* Removed incentives address from mixnodes and gateways
* Cargo.lock changes
* Ignoring clippy warnings originating from codegen from JsonSchema
* no longer formating string with a literal
* Starting on cosmwasm smart contracts
* Mixnet contract now builds
* Removing license and notice files, the monorepo already has these.
* Removing generated README content
* Simplified development instructions a bit.
* Converted some network monitor files to use SPDX license headers
* Renamed packaget to mixnet-contracts
* Depending on the Nym topology crate
* Renaming contract package in usage
* Renamed "announce" to "register_node" in the defined messages
* Fixed package name for mixnet contracts in defined release annotations
* Added the mixnet contracts to the Cargo lock file
* Renamed some fields in our contract topology
* Using the stringy mixnode from the validator client.
* Removing mix nodes count from state, we can infer that
* Saving generated code in comment as it's a useful example for now
* Renamed "count" to "get_topology"
* Adding the beginnings of a validator client (in Typescript)
* Starting to integrate example code. WIP.
* Ignoring generated accounts
* Making a few less mixnodes :)
* Adding shebang to start script
* Cranking up the Nym-related gas limits, as otherwise contract upload fails.
* Simplest mixnode example is now working
* Removing the external client code, it messed up wasm compilation. Will copy/paste for now.
* Contract now wants to add a MixNode rather than an IP string
* Adding mixnodes via contract now works (!)
* Simplified mixnode registration example
* Further mixnode-adding simplification.
* Adding author name
* Fixed description
* Sent funds are now required to bond a mixnode
* Ensuring that we send correct coin denomination
* Unbonding now works (!). Quite primitivist.
* Checking that unbonding works from the client.
* Setting up a thief account to play with
* Checking to see whether thief can unbond a node (it fails, happily)
* Adding a more specific error for when an account attempts to unbond but owns no bonds
* Figured out how to test contract balances
* Set the console messages to explain things a little more nicely
* Tests for insufficient funds result
* Using more async in driver example
* Added a bit more explanation of the actions taken by the driver example
* Locking down wasm instantiate a bit more
* Docs clarifications on how to run example
* README clarification
* Corrected the commit hash in the wasmd build command, it was still set for 0.14.0
* Moved models from types into state
* Starting work on range queries
* whitespace
* Going back to slow but reliabel node uploads and disabling new contract upload
* Cranking gas fees temporarily
* Mixnode key retrieval working and tested
* Range retrievals now working well
* Removing unused clone
* Compressing tests a bit
* Testing node retrieval on large numbers of nodes.
Not sure whether MockStorage has the same space limitations as
production storage does.
* Getting rid of spelling warning
* Removing unused responses
* Minor cleanup
* Starting to map my way out of the tuples
* Slightly more meaningful variable names
* Returning a StdResult from nodes query
* Fighting through the unwraps :)
* Unfucking a bit more
* Starting to use ranged nodes in contract
* Testing node retrieval from range store
* Ditching generated tests
* Adding works, still need to test removing mixnodes
* Attempting to remove a mixnode returns an error when no nodes exist
* Un-registering when no accounts exist (edit)
* un-registering someone else's mixnode fails
* Ensuring proper ownership
* Testing for only 1 mixnode getting deleted
* Testing single-node retrieval
* Removing mixnode working
* Removed unused imports and unused variable warnings
* Made handler functions private
* Tested for error response on mixnode removal
* Ensured proper post-state on mixnode removal
* Using Vec<Coin> for currency equality comparisons
* Removed todo, this amount is only for logging purposes anyway
* Refactoring tests a bit
* Adding a few storytelling comments
* Putting helper methods into alphabetical order
* Drying up mixnode adding in tests
* Using the new add_mixnode helper
* Checking full object equality in test
* Removing the GetNodes handler
* Taking a more "storytelling" approach to the contract tests
* We need a few more methods to run our example driver
* We now need to make a new address for each node we want to have,
as each sending account can only have one node
* HumanAddr not needed
* Making call sequence a little more readable
* Added the results of today's experiments with the REST API to the validator client readme
* Corrected console.log message
* Adding a note about how to run tests
* More contract exercising fun
* Updating mocha
* Whitespace
* Adding a note about running tests
* Adding typed rest client
* Starting to mess with typescript paging client
* Removing the rest client, we'll use the cosmjs one for this
* Noting a few more contract requirements
* Starting client restructuring
* Importing cosmjs stargate client
* Starting to work on the chain cache
* Cleanup
* Removing type annotations which hilariously worked, confusing the compiler
* Might as well do each cache individually
* Renaming chaincache so that it handles only mixnodes
* Renaming chaincache
* Setting dynamic per-page value to ease testing
* Using perPage in tests
* Moving tests back into their own special home so they don't bloat our package
* Ignoring generated docs
* Adding TypeDoc documentation generator
* Removing unused NetClient import
* Added docs generation
* Noting existence of docs generation
* Starting to test paged responses
* Working paging tests
* Clarified test names a bit
* Removed console.logs
* Added a test for two full pages.
* Formatting
* Starting to query for mix nodes
* Removed the topology in preparation for paging
* Removing unused struct
* Getting ready for series-based paging
* We're now setting page size limits on list retrievals
* Pagination starting to work, needs more testing
* Moved test support stuff into its own home
* Removing duplicate testy code
* Testing all paging stuff in the contract
* Removed useless method duplicate
* Moving queries into their own file
* Removing redundant tests
* Testing default paging limit
* Testing max paging limit
* We don't need to c/p pagination stuff from the cw-plus contracts, removing
* Testing pagination
* Making next key calculation explict via a function
* Removing temporary variable
* Commenting final state
* Incorporating the PagedResponse
* On the road to a working TypeScript client
* Adding some logging utilities
* Paged retrieval working but needs improvement - it's very brittle
* Getting the loop right
* Removing unused logger
* Setting up a request count
* Documenting the ins and outs of the client network interface
* Removing requestCount as we're not using it yet
* Success! Making paginated requests for mixnodes!
* Differentiating between MixNode and MixNodeBond
* Checking that Fred can upload a mixnode
* Fixing export
* Adding the ability for client to get balances
* Docs fix
* Converting interfaces to types
* Changing `mixNodes()` to `getMixNodes()` on client
* We might as well return the nodes we've just retrieved when we refresh
* Starting work on unbonding
* Fixed a caching bug which was causing multiple result sets to be cached
* Using the sender address as the key for removal
* Importing some result stuff so we can find out what happened on execution
* Minor messing around to prove that the sequence fully works
* Displaying a nicer message on mixnode unbond
* Renamed announce to bond in validator client
* Fixed unstable clippy warnings
* Removing commented fields
* Comment spacing
* Changed announce to bond in example code
* Making the test accounts directory configurable
* Rebuilt
* Loading keys from the local ./accounts directory
* Ignoring contract lockfile
* Saving out a contract lockfile so things continue working after contract upload
* Splitting the driver example into smaller self-contained examples
* Deleting the example that Andrew hates so much
* Making dependabot happy
* Stricter equals
* Removing unused import
* Running CI also on windows and macOS
* Rust 2021 formatting
* clippy::upper_case_acronyms where appropriate
* Allowing unknown clippy lints
* Further clippy updates
* Building wasm client during CI
* wasm actions update
* added working directory to cargo jobs
* Temporarily disabled wasm test and clippy
* Increased default connection buffer size to help with packet bursts
* Informing remote about failure to establish connection
* Properly closing outbound proxy on failure to read from socket
* Split proxy runner into separate inbound and outbound files
* Flag indicating whether socks client actually started proxying
* Clearing stale proxies if other side is closed
* Decreased log level on not a warning
* Closing proxy if no messages were received in a while
* Dont print harmless false-positive errors
* Formatting + future notes
* Fixed packet delay in higher volume traffic
* Don't attempt writing empty messages to connection
* Added github actions templates
* removed travis .yml file
* initial clippy cleanup pass
* fixed the rest of clippy warnings
* Made github badges more fancy and consistent with the ones in sphinx
* Updated local rustc version and removed compilation warningns
* ... and fresh clippy warnings
* formatting
* beta clippy specific warnings fixed
* Fixed all nightly clippy warnings
* Fixed trying to unwrap a ()
* Actually running all tests
* Correctly passing the --all flag
* Hopefullly third time's a charm in fixing argument passing
Jędrzej Stuczyński