Method: ICFS::UsersRedis#read

Defined in:
lib/icfs/users_redis.rb

#read(urg) ⇒ Hash

Read a user/role/group

Parameters:

  • urg (String) —

    User/Role/Group name

Returns:

  • (Hash) —

    Will include :type and, if a user :roles, :groups, :perms



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# File 'lib/icfs/users_redis.rb', line 65

def read(urg)
  Items.validate(urg, 'User/role/group name', Items::FieldUsergrp)
  key = _key(urg)
  @log.debug('User/role/group read: %s' % urg) if @log

  # try cache
  json = @redis.get(key)
  if json
    @log.debug('User/role/group cache hit: %s' % urg) if @log
    return JSON.parse(json)
  end

  # get base object from base store
  bse = @base.read(urg)
  if !bse
    @log.warn('User/role/group not found: %s' % urg) if @log
    return nil
  end

  # assemble
  seen = Set.new.add(urg)
  ary = []
  roles = Set.new
  grps = Set.new
  perms = Set.new
  if bse['roles']
    ary.concat bse['roles']
    roles.merge bse['roles']
  end
  if bse['groups']
    ary.concat bse['groups']
    grps.merge bse['groups']
  end
  if bse['perms']
    perms.merge bse['perms']
  end

  # call ourself recursively for any un-expanded memberships
  while itm = ary.shift
    next if seen.include?(itm)
    seen.add(itm)
    ikey = _key(itm)

    # all included u/r/g have been seen & expanded
    mem = self.read(itm)
    next if !mem
    if mem['roles']
      roles.merge mem['roles']
      seen.merge mem['roles']
    end
    if mem['groups']
      grps.merge mem['groups']
      seen.merge mem['groups']
    end
    if mem['perms']
      perms.merge mem['perms']
    end
  end

  # final result
  bse['roles'] = roles.to_a unless roles.empty?
  bse['groups'] = grps.to_a unless grps.empty?
  bse['perms'] = perms.to_a unless perms.empty?
  json = JSON.generate(bse)

  # save to cache
  @redis.set(key, json)
  @redis.expire(key, @exp)
  @log.info('User/role/group cached: %s %s' % [urg, json]) if @log
  return bse
end