client/src/app/+admin/config/shared/batch-domains-validators.service.ts

   1 import { I18n } from '@ngx-translate/i18n-polyfill'
   2 import { Validators, ValidatorFn } from '@angular/forms'
   3 import { Injectable } from '@angular/core'
   4 import { BuildFormValidator, validateHost } from '@app/shared/forms/form-validators'
   5
   6 @Injectable()
   7 export class BatchDomainsValidatorsService {
   8   readonly DOMAINS: BuildFormValidator
   9
  10   constructor (private i18n: I18n) {
  11     this.DOMAINS = {
  12       VALIDATORS: [ Validators.required, this.validDomains, this.isHostsUnique ],
  13       MESSAGES: {
  14         'required': this.i18n('Domain is required.'),
  15         'validDomains': this.i18n('Domains entered are invalid.'),
  16         'uniqueDomains': this.i18n('Domains entered contain duplicates.')
  17       }
  18     }
  19   }
  20
  21   getNotEmptyHosts (hosts: string) {
  22     return hosts
  23       .split('\n')
  24       .filter((host: string) => host && host.length !== 0) // Eject empty hosts
  25   }
  26
  27   private validDomains: ValidatorFn = (control) => {
  28     if (!control.value) return null
  29
  30     const newHostsErrors = []
  31     const hosts = this.getNotEmptyHosts(control.value)
  32
  33     for (const host of hosts) {
  34       if (validateHost(host) === false) {
  35         newHostsErrors.push(this.i18n('{{host}} is not valid', { host }))
  36       }
  37     }
  38
  39     /* Is not valid. */
  40     if (newHostsErrors.length !== 0) {
  41       return {
  42         'validDomains': {
  43           reason: 'invalid',
  44           value: newHostsErrors.join('. ') + '.'
  45         }
  46       }
  47     }
  48
  49     /* Is valid. */
  50     return null
  51   }
  52
  53   private isHostsUnique: ValidatorFn = (control) => {
  54     if (!control.value) return null
  55
  56     const hosts = this.getNotEmptyHosts(control.value)
  57
  58     if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
  59       return null
  60     } else {
  61       return {
  62         'uniqueDomains': {
  63           reason: 'invalid'
  64         }
  65       }
  66     }
  67   }
  68 }