import json import strutils import sets import statusgo_backend/core import chronicles import ../eventemitter import sequtils type Permission* {.pure.} = enum Web3 = "web3", ContactCode = "contact-code" Unknown = "unknown" logScope: topics = "permissions-model" type PermissionsModel* = ref object events*: EventEmitter proc toPermission*(value: string): Permission = result = Permission.Unknown try: result = parseEnum[Permission](value) except: warn "Unknown permission requested", value proc newPermissionsModel*(events: EventEmitter): PermissionsModel = result = PermissionsModel() result.events = events proc init*(self: PermissionsModel) = discard type Dapp* = object name*: string permissions*: HashSet[Permission] proc getDapps*(self: PermissionsModel): seq[Dapp] = let response = callPrivateRPC("permissions_getDappPermissions") result = @[] for dapps in response.parseJson["result"].getElems(): var dapp = Dapp( name: dapps["dapp"].getStr(), permissions: initHashSet[Permission]() ) for permission in dapps["permissions"].getElems(): dapp.permissions.incl(permission.getStr().toPermission()) result.add(dapp) proc getPermissions*(self: PermissionsModel, dapp: string): HashSet[Permission] = let response = callPrivateRPC("permissions_getDappPermissions") result = initHashSet[Permission]() for dappPermission in response.parseJson["result"].getElems(): if dappPermission["dapp"].getStr() == dapp: if not dappPermission.hasKey("permissions"): return for permission in dappPermission["permissions"].getElems(): result.incl(permission.getStr().toPermission()) proc revoke*(self: PermissionsModel, permission: Permission) = let response = callPrivateRPC("permissions_getDappPermissions") var permissions = initHashSet[Permission]() for dapps in response.parseJson["result"].getElems(): for currPerm in dapps["permissions"].getElems(): let p = currPerm.getStr().toPermission() if p != permission: permissions.incl(p) discard callPrivateRPC("permissions_addDappPermissions", %*[{ "dapp": dapps["dapp"].getStr(), "permissions": permissions.toSeq() }]) proc hasPermission*(self: PermissionsModel, dapp: string, permission: Permission): bool = result = self.getPermissions(dapp).contains(permission) proc addPermission*(self: PermissionsModel, dapp: string, permission: Permission) = var permissions = self.getPermissions(dapp) permissions.incl(permission) discard callPrivateRPC("permissions_addDappPermissions", %*[{ "dapp": dapp, "permissions": permissions.toSeq() }]) proc revokePermission*(self: PermissionsModel, dapp: string, permission: Permission) = var permissions = self.getPermissions(dapp) permissions.excl(permission) if permissions.len == 0: discard callPrivateRPC("permissions_deleteDappPermissions", %*[dapp]) else: discard callPrivateRPC("permissions_addDappPermissions", %*[{ "dapp": dapp, "permissions": permissions.toSeq() }]) proc clearPermissions*(self: PermissionsModel, dapp: string) = discard callPrivateRPC("permissions_deleteDappPermissions", %*[dapp]) proc clearPermissions*(self: PermissionsModel) = let response = callPrivateRPC("permissions_getDappPermissions") for dapps in response.parseJson["result"].getElems(): discard callPrivateRPC("permissions_deleteDappPermissions", %*[dapps["dapp"].getStr()])