CLDSRV-516: implement BucketDeleteQuota API

lib/api/bucketDeleteQuota.js

@@ -0,0 +1,58 @@
+const { waterfall } = require('async');
+const collectCorsHeaders = require('../utilities/collectCorsHeaders');
+const { standardMetadataValidateBucket } = require('../metadata/metadataUtils');
+const metadata = require('../metadata/wrapper');
+const { pushMetric } = require('../utapi/utilities');
+const monitoring = require('../utilities/monitoringHandler');
+
+const requestType = 'bucketDeleteQuota';
+
+/**
+ * Bucket Update Quota - Update bucket quota
+ * @param {AuthInfo} authInfo - Instance of AuthInfo class with requester's info
+ * @param {object} request - http request object
+ * @param {object} log - Werelogs logger
+ * @param {function} callback - callback to server
+ * @return {undefined}
+ */
+function bucketDeleteQuota(authInfo, request, log, callback) {
+    log.debug('processing request', { method: 'bucketDeleteQuota' });
+
+    const { bucketName } = request;
+    const metadataValParams = {
+        authInfo,
+        bucketName,
+        requestType: request.apiMethods || requestType,
+        request,
+    };
+    return waterfall([
+        next => standardMetadataValidateBucket(metadataValParams, request.actionImplicitDenies, log,
+            (err, bucket) => next(err, bucket)),
+        (bucket, next) => {
+            bucket.setQuota(0);
+            metadata.updateBucket(bucket.getName(), bucket, log, err =>
+                next(err, bucket));
+        },
+    ], (err, bucket) => {
+        const corsHeaders = collectCorsHeaders(request.headers.origin,
+            request.method, bucket);
+        if (err) {
+            log.debug('error processing request', {
+                error: err,
+                method: 'bucketDeleteQuota'
+            });
+            monitoring.promMetrics('DELETE', bucketName, err.code,
+                'bucketDeleteQuota');
+            return callback(err, err.code, corsHeaders);
+        }
+        monitoring.promMetrics(
+            'DELETE', bucketName, '204', 'bucketDeleteQuota');
+        pushMetric('bucketDeleteQuota', log, {
+            authInfo,
+            bucket: bucketName,
+        });
+        return callback(null, 204, corsHeaders);
+    });
+}
+
+module.exports = bucketDeleteQuota;