[Uptime] Settings threshold validation

x-pack/plugins/uptime/common/translations.ts

@@ -0,0 +1,14 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { i18n } from '@kbn/i18n';
+
+export const VALUE_MUST_BE_GREATER_THEN_ZEO = i18n.translate(
+  'xpack.uptime.settings.invalid.error',
+  {
+    defaultMessage: 'Value must be greater than 0.',
+  }
+);

x-pack/plugins/uptime/public/components/settings/certificate_form.tsx

@@ -59,7 +59,7 @@ export const CertificateExpirationForm: React.FC<SettingsFormProps> = ({
     >
       <EuiFormRow
         describedByIds={['errorState']}
-        error={fieldErrors?.certificatesThresholds?.expirationThresholdError}
+        error={fieldErrors?.expirationThresholdError}
         fullWidth
         helpText={
           <FormattedMessage
@@ -70,7 +70,7 @@ export const CertificateExpirationForm: React.FC<SettingsFormProps> = ({
             }}
           />
         }
-        isInvalid={!!fieldErrors?.certificatesThresholds?.expirationThresholdError}
+        isInvalid={!!fieldErrors?.expirationThresholdError}
         label={
           <FormattedMessage
             id="xpack.uptime.sourceConfiguration.errorStateLabel"
@@ -81,6 +81,7 @@ export const CertificateExpirationForm: React.FC<SettingsFormProps> = ({
         <EuiFlexGroup>
           <EuiFlexItem grow={2}>
             <EuiFieldNumber
+              min={1}
               aria-label={certificateFormTranslations.expirationInputAriaLabel}
               data-test-subj={`expiration-threshold-input-${loading ? 'loading' : 'loaded'}`}
               fullWidth
@@ -106,7 +107,7 @@ export const CertificateExpirationForm: React.FC<SettingsFormProps> = ({
       </EuiFormRow>
       <EuiFormRow
         describedByIds={['warningState']}
-        error={fieldErrors?.certificatesThresholds?.ageThresholdError}
+        error={fieldErrors?.ageThresholdError}
         fullWidth
         helpText={
           <FormattedMessage
@@ -117,7 +118,7 @@ export const CertificateExpirationForm: React.FC<SettingsFormProps> = ({
             }}
           />
         }
-        isInvalid={!!fieldErrors?.certificatesThresholds?.ageThresholdError}
+        isInvalid={!!fieldErrors?.ageThresholdError}
         label={
           <FormattedMessage
             id="xpack.uptime.sourceConfiguration.warningStateLabel"
@@ -128,15 +129,16 @@ export const CertificateExpirationForm: React.FC<SettingsFormProps> = ({
         <EuiFlexGroup>
           <EuiFlexItem grow={2}>
             <EuiFieldNumber
+              min={1}
               aria-label={certificateFormTranslations.ageInputAriaLabel}
               data-test-subj={`age-threshold-input-${loading ? 'loading' : 'loaded'}`}
               fullWidth
               disabled={isDisabled}
               isLoading={loading}
               value={formFields?.certAgeThreshold ?? ''}
-              onChange={e =>
+              onChange={({ currentTarget: { value } }) =>
                 onChange({
-                  certAgeThreshold: Number(e.currentTarget.value),
+                  certAgeThreshold: Number(value),
                 })
               }
             />

x-pack/plugins/uptime/public/pages/settings.tsx

@@ -32,13 +32,12 @@ import {
   OnFieldChangeType,
 } from '../components/settings/certificate_form';
 import * as Translations from './translations';
+import { VALUE_MUST_BE_GREATER_THEN_ZEO } from '../../common/translations';
 
 interface SettingsPageFieldErrors {
-  heartbeatIndices: 'May not be blank' | '';
-  certificatesThresholds: {
-    expirationThresholdError: string | null;
-    ageThresholdError: string | null;
-  } | null;
+  heartbeatIndices: string | '';
+  expirationThresholdError?: string;
+  ageThresholdError?: string;
 }
 
 export interface SettingsFormProps {
@@ -49,22 +48,28 @@ export interface SettingsFormProps {
   isDisabled: boolean;
 }
 
+const isValidCertVal = (val: string | number) => {
+  if (val === '') {
+    return Translations.BLANK_STR;
+  }
+  if (val === 0) {
+    return VALUE_MUST_BE_GREATER_THEN_ZEO;
+  }
+};
+
 const getFieldErrors = (formFields: DynamicSettings | null): SettingsPageFieldErrors | null => {
   if (formFields) {
-    const blankStr = 'May not be blank';
     const { certAgeThreshold, certExpirationThreshold, heartbeatIndices } = formFields;
-    const heartbeatIndErr = heartbeatIndices.match(/^\S+$/) ? '' : blankStr;
-    const expirationThresholdError = certExpirationThreshold ? null : blankStr;
-    const ageThresholdError = certAgeThreshold ? null : blankStr;
+
+    const indError = heartbeatIndices.match(/^\S+$/) ? '' : Translations.BLANK_STR;
+
+    const expError = isValidCertVal(certExpirationThreshold);
+    const ageError = isValidCertVal(certAgeThreshold);
+
     return {
-      heartbeatIndices: heartbeatIndErr,
-      certificatesThresholds:
-        expirationThresholdError || ageThresholdError
-          ? {
-              expirationThresholdError,
-              ageThresholdError,
-            }
-          : null,
+      heartbeatIndices: indError,
+      expirationThresholdError: expError,
+      ageThresholdError: ageError,
     };
   }
   return null;

x-pack/plugins/uptime/public/pages/translations.ts

@@ -36,3 +36,7 @@ export const settings = {
     defaultMessage: 'Return to overview',
   }),
 };
+
+export const BLANK_STR = i18n.translate('xpack.uptime.settings.blank.error', {
+  defaultMessage: 'May not be blank.',
+});

x-pack/plugins/uptime/server/rest_api/dynamic_settings.ts

@@ -11,6 +11,7 @@ import { UMServerLibs } from '../lib/lib';
 import { DynamicSettings, DynamicSettingsType } from '../../common/runtime_types';
 import { UMRestApiRouteFactory } from '.';
 import { savedObjectsAdapter } from '../lib/saved_objects';
+import { VALUE_MUST_BE_GREATER_THEN_ZEO } from '../../common/translations';
 
 export const createGetDynamicSettingsRoute: UMRestApiRouteFactory = (libs: UMServerLibs) => ({
   method: 'GET',
@@ -23,19 +24,35 @@ export const createGetDynamicSettingsRoute: UMRestApiRouteFactory = (libs: UMSer
   },
 });
 
+const validateCertsValues = (settings: DynamicSettings) => {
+  const errors: any = {};
+  if (settings.certAgeThreshold <= 0) {
+    errors.certAgeThreshold = VALUE_MUST_BE_GREATER_THEN_ZEO;
+  }
+  if (settings.certExpirationThreshold <= 0) {
+    errors.certExpirationThreshold = VALUE_MUST_BE_GREATER_THEN_ZEO;
+  }
+  if (errors.certAgeThreshold || errors.certExpirationThreshold) {
+    return errors;
+  }
+};
+
 export const createPostDynamicSettingsRoute: UMRestApiRouteFactory = (libs: UMServerLibs) => ({
   method: 'POST',
   path: '/api/uptime/dynamic_settings',
   validate: {
-    body: schema.object({}, { unknowns: 'allow' }),
+    body: schema.object({
+      heartbeatIndices: schema.string(),
+      certAgeThreshold: schema.number(),
+      certExpirationThreshold: schema.number(),
+    }),
   },
   writeAccess: true,
-  options: {
-    tags: ['access:uptime-write'],
-  },
   handler: async ({ savedObjectsClient }, _context, request, response): Promise<any> => {
     const decoded = DynamicSettingsType.decode(request.body);
-    if (isRight(decoded)) {
+    const certThresholdErrors = validateCertsValues(request.body as DynamicSettings);
+
+    if (isRight(decoded) && !certThresholdErrors) {
       const newSettings: DynamicSettings = decoded.right;
       await savedObjectsAdapter.setUptimeDynamicSettings(savedObjectsClient, newSettings);
 
@@ -47,7 +64,7 @@ export const createPostDynamicSettingsRoute: UMRestApiRouteFactory = (libs: UMSe
     } else {
       const error = PathReporter.report(decoded).join(', ');
       return response.badRequest({
-        body: error,
+        body: JSON.stringify(certThresholdErrors) || error,
       });
     }
   },