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TON Storage utilities (#564)

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* Rename chunk to piece in MerkleTree for consistency

* Refactor PeerManager

* Make PeerState thread-safe

* Download torrent by hash

* First version of storage daemon

* Download torrents partially

* Improve storing and loading torrent state in DB

* Rewrite MerkleTree

* "Remove torrent" in storage daemon

* Process errors, fix bugs in storage

* Move TonlibClientWrapper from rldp-http-proxy to tonlib

* Initial version of storage provider

* Move interaction with contracts to smc-util

* Improve TonlibClientWrapper interface

* Various improvements in storage provider

* Fix TorrentCreator.cpp

* Improve interface for partial download

* Client mode in storage-daemon

* Improve interface of storage-daemon-cli

* Fix calculating speed, show peers in storage-daemon

* Use permanent adnl id in storage daemon

* Fix sending large "storage.addUpdate" messages

* Improve printing torrents in cli

* Update tlo

* Fix RldpSender::on_ack

* Update storage provider

* Add "address" parameter to get-provider-params

* Allow client to close storage contract

* Limit torrent description

* Add more logs to storage provider

* smc.forget tonlib method

* Use smc.forget in storage daemon

* Optimize sending messages in smc-util.cpp

* Fix verbosity, remove excessive logs

* Json output in storage-daemon-cli

* Update storage provider contracts

* Fix rldp2 acks

* Change verbosity of logs in rldp2

* Update help and output of commands and in storage-daemon-cli

Co-authored-by: SpyCheese <mikle98@yandex.ru>
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EmelyanenkoK 2022-12-22 12:24:13 +03:00 • committed by GitHub
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# Storage Provider
Simple smart-contract system for conclusion of a storage agreements.
- guarantees that the provider stores the file
- no storage - no payment
- no penalties, if provider doesn't store file client can stop payment at any time
- no control that provider upload the file: client can stop payment at any time if not satisfied
## Storage Agreements Fabric
Storage provider deploy storage agreements fabric. Any client may request fabric to deploy storage agreement contract.
Fabric provides get-method `get_storage_params` which returns
- `accept_new_contracts?` - whether provider accepts new contracts
- `rate_per_mb_day` - price in nanoTON per Megabyte per day
- `max_span` - maximal timespan between proving file storage which will be paid
- `minimal_file_size` - minimal file size accepted by provider
- `maximal_file_size` - maximal file size accepted by provider
## Storage agreement
Agreement contract has client account and accept deposits to this account.
It also knows merkle root and allows provider to withdraw money from client account by providing merkle proof of file storage.
Client can stop agreement at any time.