joe petrowski
d1f678c0ec
This PR allows _username authorities_ to issue unique usernames that correspond with an account. It also provides two-way lookup, that is from `AccountId` to a single, "primary" `Username` (alongside `Registration`) and multiple unique `Username`s to an `AccountId`. Key features: - Username Authorities added (and removed) via privileged origin. - Authorities have a `suffix` and an `allocation`. They can grant up to `allocation` usernames. Their `suffix` will be appended to the usernames that they issue. A suffix may be up to 7 characters long. - Users can ask an authority to grant them a username. This will take the form `myusername.suffix`. The entire name (including suffix) must be less than or equal to 32 alphanumeric characters. - Users can approve a username for themselves in one of two ways (that is, authorities cannot grant them arbitrarily): - Pre-sign the entire username (including suffix) with a secret key that corresponds to their `AccountId` (for keyed accounts, obviously); or - Accept the username after it has been granted by an authority (it will be queued until accepted) (for non-keyed accounts like pure proxies or multisigs). - The system does not require any funds or deposits. Users without an identity will be given a default one (presumably all fields set to `None`). If they update this info, they will need to place the normal storage deposit. - If a user does not have any username, their first one will be set as `Primary`, and their `AccountId` will map to that one. If they get subsequent usernames, they can choose which one to be their primary via `set_primary_username`. - There are some state cleanup functions to remove expired usernames that have not been accepted and dangling usernames whose owners have called `clear_identity`. TODO: - [x] Add migration to runtimes - [x] Probably do off-chain migration into People Chain genesis - [x] Address a few TODO questions in code (please review) --------- Co-authored-by: Liam Aharon <liam.aharon@hotmail.com> Co-authored-by: Gonçalo Pestana <g6pestana@gmail.com> Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Co-authored-by: Dónal Murray <donal.murray@parity.io>
NOTE: We have recently made significant changes to our repository structure. In order to streamline our development process and foster better contributions, we have merged three separate repositories Cumulus, Substrate and Polkadot into this repository. Read more about the changes here.
Polkadot SDK
The Polkadot SDK repository provides all the resources needed to start building on the Polkadot network, a multi-chain blockchain platform that enables different blockchains to interoperate and share information in a secure and scalable way. The Polkadot SDK comprises three main pieces of software:
Polkadot
Implementation of a node for the https://polkadot.network in Rust, using the Substrate framework. This directory
currently contains runtimes for the Polkadot, Kusama, Westend, and Rococo networks. In the future, these will be
relocated to the runtimes repository.
Substrate
Substrate is the primary blockchain SDK used by developers to create the parachains that make up the Polkadot network. Additionally, it allows for the development of self-sovereign blockchains that operate completely independently of Polkadot.
Cumulus
Cumulus is a set of tools for writing Substrate-based Polkadot parachains.
Upstream Dependencies
Below are the primary upstream dependencies utilized in this project:
Security
The security policy and procedures can be found in docs/contributor/SECURITY.md.
Contributing & Code of Conduct
Ensure you follow our contribution guidelines. In every interaction and contribution, this project adheres to the Contributor Covenant Code of Conduct.
Additional Resources
- For monitoring upcoming changes and current proposals related to the technical implementation of the Polkadot network,
visit the
Requests for Comment (RFC)repository. While it's maintained by the Polkadot Fellowship, the RFC process welcomes contributions from everyone.