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06215f15 C |
1 | import { UserModel } from '../models/account/user' |
2 | import * as ipaddr from 'ipaddr.js' | |
6dd9de95 C |
3 | import { CONFIG } from '../initializers/config' |
4 | ||
06215f15 C |
5 | const isCidr = require('is-cidr') |
6 | ||
4ce7eb71 | 7 | async function isSignupAllowed (): Promise<{ allowed: boolean, errorMessage?: string }> { |
06215f15 | 8 | if (CONFIG.SIGNUP.ENABLED === false) { |
4ce7eb71 | 9 | return { allowed: false } |
06215f15 C |
10 | } |
11 | ||
12 | // No limit and signup is enabled | |
13 | if (CONFIG.SIGNUP.LIMIT === -1) { | |
4ce7eb71 | 14 | return { allowed: true } |
06215f15 C |
15 | } |
16 | ||
17 | const totalUsers = await UserModel.countTotal() | |
18 | ||
4ce7eb71 | 19 | return { allowed: totalUsers < CONFIG.SIGNUP.LIMIT } |
06215f15 C |
20 | } |
21 | ||
22 | function isSignupAllowedForCurrentIP (ip: string) { | |
23 | const addr = ipaddr.parse(ip) | |
24 | let excludeList = [ 'blacklist' ] | |
25 | let matched = '' | |
26 | ||
27 | // if there is a valid, non-empty whitelist, we exclude all unknown adresses too | |
28 | if (CONFIG.SIGNUP.FILTERS.CIDR.WHITELIST.filter(cidr => isCidr(cidr)).length > 0) { | |
29 | excludeList.push('unknown') | |
30 | } | |
31 | ||
32 | if (addr.kind() === 'ipv4') { | |
33 | const addrV4 = ipaddr.IPv4.parse(ip) | |
34 | const rangeList = { | |
35 | whitelist: CONFIG.SIGNUP.FILTERS.CIDR.WHITELIST.filter(cidr => isCidr.v4(cidr)) | |
36 | .map(cidr => ipaddr.IPv4.parseCIDR(cidr)), | |
37 | blacklist: CONFIG.SIGNUP.FILTERS.CIDR.BLACKLIST.filter(cidr => isCidr.v4(cidr)) | |
38 | .map(cidr => ipaddr.IPv4.parseCIDR(cidr)) | |
39 | } | |
40 | matched = ipaddr.subnetMatch(addrV4, rangeList, 'unknown') | |
41 | } else if (addr.kind() === 'ipv6') { | |
42 | const addrV6 = ipaddr.IPv6.parse(ip) | |
43 | const rangeList = { | |
44 | whitelist: CONFIG.SIGNUP.FILTERS.CIDR.WHITELIST.filter(cidr => isCidr.v6(cidr)) | |
45 | .map(cidr => ipaddr.IPv6.parseCIDR(cidr)), | |
46 | blacklist: CONFIG.SIGNUP.FILTERS.CIDR.BLACKLIST.filter(cidr => isCidr.v6(cidr)) | |
47 | .map(cidr => ipaddr.IPv6.parseCIDR(cidr)) | |
48 | } | |
49 | matched = ipaddr.subnetMatch(addrV6, rangeList, 'unknown') | |
50 | } | |
51 | ||
52 | return !excludeList.includes(matched) | |
53 | } | |
54 | ||
55 | // --------------------------------------------------------------------------- | |
56 | ||
57 | export { | |
58 | isSignupAllowed, | |
59 | isSignupAllowedForCurrentIP | |
60 | } |