1 import { CONFIG } from '../initializers'
2 import { UserModel } from '../models/account/user'
3 import * as ipaddr from 'ipaddr.js'
4 const isCidr = require('is-cidr')
6 async function isSignupAllowed () {
7 if (CONFIG.SIGNUP.ENABLED === false) {
11 // No limit and signup is enabled
12 if (CONFIG.SIGNUP.LIMIT === -1) {
16 const totalUsers = await UserModel.countTotal()
18 return totalUsers < CONFIG.SIGNUP.LIMIT
21 function isSignupAllowedForCurrentIP (ip: string) {
22 const addr = ipaddr.parse(ip)
23 let excludeList = [ 'blacklist' ]
26 // if there is a valid, non-empty whitelist, we exclude all unknown adresses too
27 if (CONFIG.SIGNUP.FILTERS.CIDR.WHITELIST.filter(cidr => isCidr(cidr)).length > 0) {
28 excludeList.push('unknown')
31 if (addr.kind() === 'ipv4') {
32 const addrV4 = ipaddr.IPv4.parse(ip)
34 whitelist: CONFIG.SIGNUP.FILTERS.CIDR.WHITELIST.filter(cidr => isCidr.v4(cidr))
35 .map(cidr => ipaddr.IPv4.parseCIDR(cidr)),
36 blacklist: CONFIG.SIGNUP.FILTERS.CIDR.BLACKLIST.filter(cidr => isCidr.v4(cidr))
37 .map(cidr => ipaddr.IPv4.parseCIDR(cidr))
39 matched = ipaddr.subnetMatch(addrV4, rangeList, 'unknown')
40 } else if (addr.kind() === 'ipv6') {
41 const addrV6 = ipaddr.IPv6.parse(ip)
43 whitelist: CONFIG.SIGNUP.FILTERS.CIDR.WHITELIST.filter(cidr => isCidr.v6(cidr))
44 .map(cidr => ipaddr.IPv6.parseCIDR(cidr)),
45 blacklist: CONFIG.SIGNUP.FILTERS.CIDR.BLACKLIST.filter(cidr => isCidr.v6(cidr))
46 .map(cidr => ipaddr.IPv6.parseCIDR(cidr))
48 matched = ipaddr.subnetMatch(addrV6, rangeList, 'unknown')
51 return !excludeList.includes(matched)
54 // ---------------------------------------------------------------------------
58 isSignupAllowedForCurrentIP