1 files changed, 68 insertions, 0 deletions

diff --git a/client/src/app/+admin/config/shared/batch-domains-validators.service.ts b/client/src/app/+admin/config/shared/batch-domains-validators.service.ts
new file mode 100644
index 000000000..154ef3a23
--- /dev/null
+++ b/client/src/app/+admin/config/shared/batch-domains-validators.service.ts
@@ -0,0 +1,68 @@
+import { I18n } from '@ngx-translate/i18n-polyfill'
+import { Validators, ValidatorFn } from '@angular/forms'
+import { Injectable } from '@angular/core'
+import { BuildFormValidator, validateHost } from '@app/shared'
+
+@Injectable()
+export class BatchDomainsValidatorsService {
+  readonly DOMAINS: BuildFormValidator
+
+  constructor (private i18n: I18n) {
+    this.DOMAINS = {
+      VALIDATORS: [ Validators.required, this.validDomains, this.isHostsUnique ],
+      MESSAGES: {
+        'required': this.i18n('Domain is required.'),
+        'validDomains': this.i18n('Domains entered are invalid.'),
+        'uniqueDomains': this.i18n('Domains entered contain duplicates.')
+      }
+    }
+  }
+
+  getNotEmptyHosts (hosts: string) {
+    return hosts
+      .split('\n')
+      .filter((host: string) => host && host.length !== 0) // Eject empty hosts
+  }
+
+  private validDomains: ValidatorFn = (control) => {
+    if (!control.value) return null
+
+    const newHostsErrors = []
+    const hosts = this.getNotEmptyHosts(control.value)
+
+    for (const host of hosts) {
+      if (validateHost(host) === false) {
+        newHostsErrors.push(this.i18n('{{host}} is not valid', { host }))
+      }
+    }
+
+    /* Is not valid. */
+    if (newHostsErrors.length !== 0) {
+      return {
+        'validDomains': {
+          reason: 'invalid',
+          value: newHostsErrors.join('. ') + '.'
+        }
+      }
+    }
+
+    /* Is valid. */
+    return null
+  }
+
+  private isHostsUnique: ValidatorFn = (control) => {
+    if (!control.value) return null
+
+    const hosts = this.getNotEmptyHosts(control.value)
+
+    if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
+      return null
+    } else {
+      return {
+        'uniqueDomains': {
+          reason: 'invalid'
+        }
+      }
+    }
+  }
+}