[SR] Support capitalized date formats in snapshot names (#53751)

Snapshot names that contain date math may require capital letters, e.g. "<snapshot-{now/d{yyyy.MM.dd|+09:00}}>". This change fixes a bug which complained that capital letters are not allowed in snapshot names, by scoping this validation to only the name part of this pattern, ignoring the date math part.

x-pack/legacy/plugins/snapshot_restore/public/app/components/policy_form/steps/step_logistics.tsx

@@ -347,7 +347,7 @@ export const PolicyStepLogistics: React.FunctionComponent<StepProps> = ({
           onChange={e => {
             updatePolicy(
               {
-                snapshotName: e.target.value.toLowerCase(),
+                snapshotName: e.target.value,
               },
               {
                 managedRepository,

x-pack/legacy/plugins/snapshot_restore/public/app/services/validation/validate_policy.ts

@@ -15,6 +15,16 @@ const isStringEmpty = (str: string | null): boolean => {
   return str ? !Boolean(str.trim()) : true;
 };
 
+// strExcludeDate is the concat results of the SnapshotName ...{...}>... without the date
+// This way we can check only the SnapshotName portion for lowercasing
+// For example: <logstash-{now/d}> would give strExcludeDate = <logstash->
+
+const isSnapshotNameNotLowerCase = (str: string): boolean => {
+  const strExcludeDate =
+    str.substring(0, str.search('{')) + str.substring(str.search('}>') + 1, str.length);
+  return strExcludeDate !== strExcludeDate.toLowerCase() ? true : false;
+};
+
 export const validatePolicy = (
   policy: SlmPolicyPayload,
   validationHelperData: {
@@ -61,6 +71,14 @@ export const validatePolicy = (
     );
   }
 
+  if (isSnapshotNameNotLowerCase(snapshotName)) {
+    validation.errors.snapshotName.push(
+      i18n.translate('xpack.snapshotRestore.policyValidation.snapshotNameLowerCaseErrorMessage', {
+        defaultMessage: 'Snapshot name needs to be lowercase.',
+      })
+    );
+  }
+
   if (isStringEmpty(schedule)) {
     validation.errors.schedule.push(
       i18n.translate('xpack.snapshotRestore.policyValidation.scheduleRequiredErrorMessage', {

x-pack/legacy/plugins/watcher/public/np_ready/application/models/action/webhook_action.js

@@ -25,6 +25,7 @@ export class WebhookAction extends BaseAction {
     this.username = get(props, 'username');
     this.password = get(props, 'password');
     this.contentType = get(props, 'contentType');
+
     this.fullPath = `${this.host}:${this.port}${this.path ? '/' + this.path : ''}`;
   }