CommunityContract

This repository contains the Community Contract, a smart contract that manages roles and permissions within a community.

The list of basic features:

• The owner can create roles and manage roles and permissions for other roles.
• When a role is granted to a user, the user obtains an NFT for each role.
• Supports the protocol of Native Meta Transactions (ERC-2771).
• Supports the ownable interface from the OpenZeppelin library, accessible to any user in the "owners" role.
• Uses the standard for representing ownership of non-fungible tokens (ERC-721) with small changes:
• • Every person who has a role also has an NFT that represents belonging to this role. Such an NFT cannot be transferred or burnt. However, when an admin revokes a role from the user, the NFT also disappears.

Installation

You can clone the repository from GitHub:

git clone [email protected]:Intercoin/CommunityContract.git

or install it using npm:

npm i @artman325/community

Deploy

Any user can create their own community by calling the produce method of the CommunityFactory contract: produce(hook, invitedHook, name, symbol).

Link for the factory below

Factory's addresses depend of networks

Overview

There are 6 predefined roles:

role name	role index
owners	1
admins	2
members	3
alumni	4
visitors	5

The owners role is a single role that can manage itself, meaning one owner can add or remove other owners.

The contract can be used as external storage for getting a list of members.

Any user obtains an NFT with tokenID = (roleid << 160) + walletaddress.
Anyone who can manage a certain role can set up the tokenURI for this role by calling setRoleURI.

Full methods for each contract can be found here: Community. The most usable methods will be described below:

method name	called by	description
grantRoles	Any role which manage "roles"	adding members to new "roles"
revokeRoles	Any role which manage "roles"	removing members from "roles". Revert if any roles can not be managed by sender
createRole	only `owners`	Creating new role
manageRole	only `owners`	allow account with "byRole" setup "ofRole" to any another account
getAddresses	anyone	Returns all accounts belong to "role"
getRoles	anyone	Returns all roles which account belong to
addressesCount	anyone	Returns number of all members belong to "role"

Methods

grantRoles

Adds accounts to new roles. Can be called by any role that manages roles. Reverts if any roles cannot be managed by the sender.

Params:

name	type	description
accounts	address[]	account's address
roles	uint8[]	indexes of roles

revokeRoles

Removes roles from certain accounts. Can be called by any role that manages roles. Reverts if any roles cannot be managed by the sender.

Params:

name	type	description
accounts	address[]	accounts's address
roles	uint8[]	indexes of roles

createRole

Creates a new role. Can only be called by owners.

Params:

name	type	description
role	string	name of role

manageRole

Allows an account with byRole to set up ofRole for another account with the default role (members). Can only be called by owners.

Params:

name	type	description
byRole	uint8	index of source role
ofRole	uint8	index of target role
canGrantRole	bool	if true then byRole can grant ofRole to account, overwise - disabled
canRevokeRole	bool	if true then byRole can revoke ofRole from account, overwise - disabled
requireRole	uint8	target account should be in role requireRole to be able to obtain ofRole. if zero - then available to everyone
maxAddresses	uint256	amount of addresses that be available to grant in duration period(bucket) if zero - then no limit
duration	uint64	if zero - then no buckets. but if maxAddresses != 0 then it's real total maximum addresses available to grant

getAddresses

Returns all accounts belonging to a role.

Params:

name	type	description
role	uint8	index of role.

getRoles

Returns all roles that a member belongs to.

Params:

name	type	description
account	address	account's address. [optional] if not specified returned all roles

addressesCount

Returns the number of all accounts belonging to a role.

Params:

name	type	description
role	uint8	index of role.

Example to use

visit wiki

License

MIT