[SDKS-7795] Validation of feature flag filters in consumer and partial consumer modes

src/logger/constants.ts

@@ -91,6 +91,7 @@ export const WARN_NOT_EXISTENT_SPLIT = 215;
 export const WARN_LOWERCASE_TRAFFIC_TYPE = 216;
 export const WARN_NOT_EXISTENT_TT = 217;
 export const WARN_INTEGRATION_INVALID = 218;
+export const WARN_SPLITS_FILTER_IGNORED = 219;
 export const WARN_SPLITS_FILTER_INVALID = 220;
 export const WARN_SPLITS_FILTER_EMPTY = 221;
 export const WARN_SDK_KEY = 222;

src/logger/messages/warn.ts

@@ -26,13 +26,14 @@ export const codesWarn: [number, string][] = codesError.concat([
   [c.WARN_NOT_EXISTENT_TT, '%s: traffic type "%s" does not have any corresponding feature flag in this environment, make sure you\'re tracking your events to a valid traffic type defined in the Split user interface.'],
   [c.WARN_FLAGSET_NOT_CONFIGURED, '%s: : you passed %s wich is not part of the configured FlagSetsFilter, ignoring Flag Set.'],
   // initialization / settings validation
-  [c.WARN_INTEGRATION_INVALID, c.LOG_PREFIX_SETTINGS+': %s integration item(s) at settings is invalid. %s'],
-  [c.WARN_SPLITS_FILTER_INVALID, c.LOG_PREFIX_SETTINGS+': feature flag filter at position %s is invalid. It must be an object with a valid filter type ("bySet", "byName" or "byPrefix") and a list of "values".'],
-  [c.WARN_SPLITS_FILTER_EMPTY, c.LOG_PREFIX_SETTINGS+': feature flag filter configuration must be a non-empty array of filter objects.'],
-  [c.WARN_SDK_KEY, c.LOG_PREFIX_SETTINGS+': You already have %s. We recommend keeping only one instance of the factory at all times (Singleton pattern) and reusing it throughout your application'],
+  [c.WARN_INTEGRATION_INVALID, c.LOG_PREFIX_SETTINGS + ': %s integration item(s) at settings is invalid. %s'],
+  [c.WARN_SPLITS_FILTER_IGNORED, c.LOG_PREFIX_SETTINGS + ': feature flag filters are not applicable for Consumer modes where the SDK does not keep rollout data in sync. Filters were discarded'],
+  [c.WARN_SPLITS_FILTER_INVALID, c.LOG_PREFIX_SETTINGS + ': feature flag filter at position %s is invalid. It must be an object with a valid filter type ("bySet", "byName" or "byPrefix") and a list of "values".'],
+  [c.WARN_SPLITS_FILTER_EMPTY, c.LOG_PREFIX_SETTINGS + ': feature flag filter configuration must be a non-empty array of filter objects.'],
+  [c.WARN_SDK_KEY, c.LOG_PREFIX_SETTINGS + ': You already have %s. We recommend keeping only one instance of the factory at all times (Singleton pattern) and reusing it throughout your application'],
 
   [c.STREAMING_PARSING_MY_SEGMENTS_UPDATE_V2, c.LOG_PREFIX_SYNC_STREAMING + 'Fetching MySegments due to an error processing %s notification: %s'],
   [c.STREAMING_PARSING_SPLIT_UPDATE, c.LOG_PREFIX_SYNC_STREAMING + 'Fetching SplitChanges due to an error processing SPLIT_UPDATE notification: %s'],
-  [c.WARN_SPLITS_FILTER_INVALID_SET, c.LOG_PREFIX_SETTINGS+': you passed %s, flag set must adhere to the regular expressions %s. This means a flag set must start with a letter or number, be in lowercase, alphanumeric and have a max length of 50 characters. %s was discarded.'],
-  [c.WARN_SPLITS_FILTER_LOWERCASE_SET, c.LOG_PREFIX_SETTINGS+': flag set %s should be all lowercase - converting string to lowercase.'],
+  [c.WARN_SPLITS_FILTER_INVALID_SET, c.LOG_PREFIX_SETTINGS + ': you passed %s, flag set must adhere to the regular expressions %s. This means a flag set must start with a letter or number, be in lowercase, alphanumeric and have a max length of 50 characters. %s was discarded.'],
+  [c.WARN_SPLITS_FILTER_LOWERCASE_SET, c.LOG_PREFIX_SETTINGS + ': flag set %s should be all lowercase - converting string to lowercase.'],
 ]);

src/utils/settingsValidation/__tests__/splitFilters.spec.ts

@@ -1,11 +1,12 @@
 import { loggerMock } from '../../../logger/__tests__/sdkLogger.mock';
+import { STANDALONE_MODE, CONSUMER_MODE, CONSUMER_PARTIAL_MODE, LOCALHOST_MODE, PRODUCER_MODE } from '../../constants';
 
 // Split filter and QueryStrings examples
 import { splitFilters, queryStrings, groupedFilters } from '../../../__tests__/mocks/fetchSpecificSplits';
 
 // Test target
 import { flagSetsAreValid, validateSplitFilters } from '../splitFilters';
-import { SETTINGS_SPLITS_FILTER, ERROR_INVALID, ERROR_EMPTY_ARRAY, ERROR_SETS_FILTER_EXCLUSIVE, WARN_SPLITS_FILTER_INVALID, WARN_SPLITS_FILTER_EMPTY, WARN_TRIMMING, WARN_SPLITS_FILTER_INVALID_SET, WARN_SPLITS_FILTER_LOWERCASE_SET, WARN_FLAGSET_NOT_CONFIGURED } from '../../../logger/constants';
+import { SETTINGS_SPLITS_FILTER, ERROR_INVALID, ERROR_EMPTY_ARRAY, ERROR_SETS_FILTER_EXCLUSIVE, WARN_SPLITS_FILTER_INVALID, WARN_SPLITS_FILTER_EMPTY, WARN_TRIMMING, WARN_SPLITS_FILTER_INVALID_SET, WARN_SPLITS_FILTER_LOWERCASE_SET, WARN_FLAGSET_NOT_CONFIGURED, WARN_SPLITS_FILTER_IGNORED } from '../../../logger/constants';
 
 describe('validateSplitFilters', () => {
 
@@ -28,17 +29,21 @@ describe('validateSplitFilters', () => {
 
   afterEach(() => { loggerMock.mockClear(); });
 
-  test('Returns default output with empty values if `splitFilters` is an invalid object or `mode` is not \'standalone\'', () => {
+  test('Returns default output with empty values if `splitFilters` is an invalid object or `mode` is \'consumer\' or \'consumer_partial\'', () => {
 
-    expect(validateSplitFilters(loggerMock, undefined)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
-    expect(validateSplitFilters(loggerMock, null)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
+    expect(validateSplitFilters(loggerMock, undefined, STANDALONE_MODE)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
+    expect(validateSplitFilters(loggerMock, null, STANDALONE_MODE)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
     expect(loggerMock.warn).not.toBeCalled();
 
-    expect(validateSplitFilters(loggerMock, true)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
-    expect(validateSplitFilters(loggerMock, 15)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
-    expect(validateSplitFilters(loggerMock, 'string')).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
-    expect(validateSplitFilters(loggerMock, [])).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
-    expect(loggerMock.warn.mock.calls).toEqual([[WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_EMPTY]]);
+    expect(validateSplitFilters(loggerMock, true, STANDALONE_MODE)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
+    expect(validateSplitFilters(loggerMock, 15, STANDALONE_MODE)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
+    expect(validateSplitFilters(loggerMock, 'string', STANDALONE_MODE)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
+    expect(validateSplitFilters(loggerMock, [], STANDALONE_MODE)).toEqual(defaultOutput); // splitFilters ignored if not a non-empty array
+
+    expect(validateSplitFilters(loggerMock, [{ type: 'byName', values: ['split_1'] }], CONSUMER_MODE)).toEqual(defaultOutput); // splitFilters ignored if in consumer mode
+    expect(validateSplitFilters(loggerMock, [{ type: 'byName', values: ['split_1'] }], CONSUMER_PARTIAL_MODE)).toEqual(defaultOutput); // splitFilters ignored if in partial consumer mode
+
+    expect(loggerMock.warn.mock.calls).toEqual([[WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_EMPTY], [WARN_SPLITS_FILTER_IGNORED], [WARN_SPLITS_FILTER_IGNORED]]);
 
     expect(loggerMock.debug).not.toBeCalled();
     expect(loggerMock.error).not.toBeCalled();
@@ -56,7 +61,7 @@ describe('validateSplitFilters', () => {
       queryString: null,
       groupedFilters: { bySet: [], byName: [], byPrefix: [] },
     };
-    expect(validateSplitFilters(loggerMock, splitFilters)).toEqual(output); // filters without values
+    expect(validateSplitFilters(loggerMock, splitFilters, STANDALONE_MODE)).toEqual(output); // filters without values
     expect(loggerMock.debug).toBeCalledWith(SETTINGS_SPLITS_FILTER, [null]);
     loggerMock.debug.mockClear();
 
@@ -66,7 +71,7 @@ describe('validateSplitFilters', () => {
       { type: null, values: [] },
       { type: 'byName', values: [13] });
     output.validFilters.push({ type: 'byName', values: [13] });
-    expect(validateSplitFilters(loggerMock, splitFilters)).toEqual(output); // some filters are invalid
+    expect(validateSplitFilters(loggerMock, splitFilters, STANDALONE_MODE)).toEqual(output); // some filters are invalid
     expect(loggerMock.debug.mock.calls).toEqual([[SETTINGS_SPLITS_FILTER, [null]]]);
     expect(loggerMock.warn.mock.calls).toEqual([
       [WARN_SPLITS_FILTER_INVALID, [4]], // invalid value of `type` property
@@ -90,24 +95,24 @@ describe('validateSplitFilters', () => {
           queryString: queryStrings[i],
           groupedFilters: groupedFilters[i],
         };
-        expect(validateSplitFilters(loggerMock, splitFilters[i])).toEqual(output); // splitFilters #${i}
+        expect(validateSplitFilters(loggerMock, splitFilters[i], STANDALONE_MODE)).toEqual(output); // splitFilters #${i}
         expect(loggerMock.debug).lastCalledWith(SETTINGS_SPLITS_FILTER, [queryStrings[i]]);
 
       } else { // tests where validateSplitFilters throws an exception
-        expect(() => validateSplitFilters(loggerMock, splitFilters[i])).toThrow(queryStrings[i]);
+        expect(() => validateSplitFilters(loggerMock, splitFilters[i], STANDALONE_MODE)).toThrow(queryStrings[i]);
       }
     }
   });
 
   test('Validates flag set filters', () => {
     // extra spaces trimmed and sorted query output
-    expect(validateSplitFilters(loggerMock, splitFilters[6])).toEqual(getOutput(6)); // trim & sort
+    expect(validateSplitFilters(loggerMock, splitFilters[6], STANDALONE_MODE)).toEqual(getOutput(6)); // trim & sort
     expect(loggerMock.warn.mock.calls[0]).toEqual([WARN_TRIMMING, ['settings', 'bySet filter value', ' set_1']]);
     expect(loggerMock.warn.mock.calls[1]).toEqual([WARN_TRIMMING, ['settings', 'bySet filter value', 'set_3 ']]);
     expect(loggerMock.warn.mock.calls[2]).toEqual([WARN_TRIMMING, ['settings', 'bySet filter value', ' set_a ']]);
     expect(loggerMock.error.mock.calls[0]).toEqual([ERROR_SETS_FILTER_EXCLUSIVE]);
 
-    expect(validateSplitFilters(loggerMock, splitFilters[7])).toEqual(getOutput(7)); // lowercase and regexp
+    expect(validateSplitFilters(loggerMock, splitFilters[7], LOCALHOST_MODE)).toEqual(getOutput(7)); // lowercase and regexp
     expect(loggerMock.warn.mock.calls[3]).toEqual([WARN_SPLITS_FILTER_LOWERCASE_SET, ['seT_c']]); // lowercase
     expect(loggerMock.warn.mock.calls[4]).toEqual([WARN_SPLITS_FILTER_LOWERCASE_SET, ['set_B']]); // lowercase
     expect(loggerMock.warn.mock.calls[5]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set_ 1', regexp, 'set_ 1']]); // empty spaces
@@ -116,7 +121,7 @@ describe('validateSplitFilters', () => {
     expect(loggerMock.warn.mock.calls[8]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set_1234567890_1234567890_234567890_1234567890_1234567890', regexp, 'set_1234567890_1234567890_234567890_1234567890_1234567890']]); // max of 50 characters
     expect(loggerMock.error.mock.calls[1]).toEqual([ERROR_SETS_FILTER_EXCLUSIVE]);
 
-    expect(validateSplitFilters(loggerMock, splitFilters[8])).toEqual(getOutput(8)); // lowercase and dedupe
+    expect(validateSplitFilters(loggerMock, splitFilters[8], PRODUCER_MODE)).toEqual(getOutput(8)); // lowercase and dedupe
     expect(loggerMock.warn.mock.calls[9]).toEqual([WARN_SPLITS_FILTER_LOWERCASE_SET, ['SET_2']]); // lowercase
     expect(loggerMock.warn.mock.calls[10]).toEqual([WARN_SPLITS_FILTER_LOWERCASE_SET, ['set_B']]); // lowercase
     expect(loggerMock.warn.mock.calls[11]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set_3!', regexp, 'set_3!']]); // special character
@@ -147,21 +152,21 @@ describe('validateSplitFilters', () => {
     expect(loggerMock.warn.mock.calls[2]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, [longName, regexp, longName]]);
 
     // both set names invalid -> empty list & warn
-    expect(flagSetsAreValid(loggerMock, 'test_method', ['set*1','set*3'], flagSetsFilter)).toEqual([]);
+    expect(flagSetsAreValid(loggerMock, 'test_method', ['set*1', 'set*3'], flagSetsFilter)).toEqual([]);
     expect(loggerMock.warn.mock.calls[3]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set*1', regexp, 'set*1']]);
     expect(loggerMock.warn.mock.calls[4]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set*3', regexp, 'set*3']]);
 
     // only set_1 is valid => [set_1] & warn
-    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1','set*3'], flagSetsFilter)).toEqual(['set_1']);
+    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1', 'set*3'], flagSetsFilter)).toEqual(['set_1']);
     expect(loggerMock.warn.mock.calls[5]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set*3', regexp, 'set*3']]);
 
     // set_3 not included in configuration but set_1 included => [set_1] & warn
-    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1','set_3'], flagSetsFilter)).toEqual(['set_1']);
+    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1', 'set_3'], flagSetsFilter)).toEqual(['set_1']);
     expect(loggerMock.warn.mock.calls[6]).toEqual([WARN_FLAGSET_NOT_CONFIGURED, ['test_method', 'set_3']]);
 
     // set_3 not included in configuration => [] & warn
     expect(flagSetsAreValid(loggerMock, 'test_method', ['set_3'], flagSetsFilter)).toEqual([]);
-    expect(loggerMock.warn.mock.calls[7]).toEqual([WARN_FLAGSET_NOT_CONFIGURED, ['test_method','set_3']]);
+    expect(loggerMock.warn.mock.calls[7]).toEqual([WARN_FLAGSET_NOT_CONFIGURED, ['test_method', 'set_3']]);
 
     // empty config
 
@@ -179,17 +184,17 @@ describe('validateSplitFilters', () => {
     expect(loggerMock.warn.mock.calls[10]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, [longName, regexp, longName]]);
 
     // both set names invalid -> empty list & warn
-    expect(flagSetsAreValid(loggerMock, 'test_method', ['set*1','set*3'], [])).toEqual([]);
+    expect(flagSetsAreValid(loggerMock, 'test_method', ['set*1', 'set*3'], [])).toEqual([]);
     expect(loggerMock.warn.mock.calls[11]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set*1', regexp, 'set*1']]);
     expect(loggerMock.warn.mock.calls[12]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set*3', regexp, 'set*3']]);
 
     // only set_1 is valid => [set_1] & warn
-    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1','set*3'], [])).toEqual(['set_1']);
+    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1', 'set*3'], [])).toEqual(['set_1']);
     expect(loggerMock.warn.mock.calls[13]).toEqual([WARN_SPLITS_FILTER_INVALID_SET, ['set*3', regexp, 'set*3']]);
 
     // any set should be returned if there isn't flag sets in filter
     expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1'], [])).toEqual(['set_1']);
-    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1','set_2'], [])).toEqual(['set_1','set_2']);
+    expect(flagSetsAreValid(loggerMock, 'test_method', ['set_1', 'set_2'], [])).toEqual(['set_1', 'set_2']);
     expect(flagSetsAreValid(loggerMock, 'test_method', ['set_3'], [])).toEqual(['set_3']);
 
   });

src/utils/settingsValidation/index.ts

@@ -202,7 +202,7 @@ export function settingsValidation(config: unknown, validationParams: ISettingsV
   }
 
   // validate the `splitFilters` settings and parse splits query
-  const splitFiltersValidation = validateSplitFilters(log, withDefaults.sync.splitFilters);
+  const splitFiltersValidation = validateSplitFilters(log, withDefaults.sync.splitFilters, withDefaults.mode);
   withDefaults.sync.splitFilters = splitFiltersValidation.validFilters;
   withDefaults.sync.__splitFiltersValidation = splitFiltersValidation;
 

src/utils/settingsValidation/splitFilters.ts

@@ -1,8 +1,9 @@
+import { CONSUMER_MODE, CONSUMER_PARTIAL_MODE } from '../constants';
 import { validateSplits } from '../inputValidation/splits';
 import { ISplitFiltersValidation } from '../../dtos/types';
 import { SplitIO } from '../../types';
 import { ILogger } from '../../logger/types';
-import { WARN_SPLITS_FILTER_EMPTY, WARN_SPLITS_FILTER_INVALID, SETTINGS_SPLITS_FILTER, LOG_PREFIX_SETTINGS, ERROR_SETS_FILTER_EXCLUSIVE, WARN_SPLITS_FILTER_LOWERCASE_SET, WARN_SPLITS_FILTER_INVALID_SET, WARN_FLAGSET_NOT_CONFIGURED } from '../../logger/constants';
+import { WARN_SPLITS_FILTER_IGNORED, WARN_SPLITS_FILTER_EMPTY, WARN_SPLITS_FILTER_INVALID, SETTINGS_SPLITS_FILTER, LOG_PREFIX_SETTINGS, ERROR_SETS_FILTER_EXCLUSIVE, WARN_SPLITS_FILTER_LOWERCASE_SET, WARN_SPLITS_FILTER_INVALID_SET, WARN_FLAGSET_NOT_CONFIGURED } from '../../logger/constants';
 import { objectAssign } from '../lang/objectAssign';
 import { find, uniq } from '../lang';
 
@@ -102,15 +103,15 @@ function queryStringBuilder(groupedFilters: Record<SplitIO.SplitFilterType, stri
 function sanitizeFlagSets(log: ILogger, flagSets: string[]) {
   let sanitizedSets = flagSets
     .map(flagSet => {
-      if (CAPITAL_LETTERS_REGEX.test(flagSet)){
-        log.warn(WARN_SPLITS_FILTER_LOWERCASE_SET,[flagSet]);
+      if (CAPITAL_LETTERS_REGEX.test(flagSet)) {
+        log.warn(WARN_SPLITS_FILTER_LOWERCASE_SET, [flagSet]);
         flagSet = flagSet.toLowerCase();
       }
       return flagSet;
     })
     .filter(flagSet => {
-      if (!VALID_FLAGSET_REGEX.test(flagSet)){
-        log.warn(WARN_SPLITS_FILTER_INVALID_SET, [flagSet,VALID_FLAGSET_REGEX,flagSet]);
+      if (!VALID_FLAGSET_REGEX.test(flagSet)) {
+        log.warn(WARN_SPLITS_FILTER_INVALID_SET, [flagSet, VALID_FLAGSET_REGEX, flagSet]);
         return false;
       }
       if (typeof flagSet !== 'string') return false;
@@ -128,14 +129,15 @@ function configuredFilter(validFilters: SplitIO.SplitFilter[], filterType: Split
  *
  * @param {ILogger} log logger
  * @param {any} maybeSplitFilters split filters configuration param provided by the user
+ * @param {string} mode settings mode
  * @returns it returns an object with the following properties:
  *  - `validFilters`: the validated `splitFilters` configuration object defined by the user.
  *  - `queryString`: the parsed split filter query. it is null if all filters are invalid or all values in filters are invalid.
  *  - `groupedFilters`: list of values grouped by filter type.
  *
  * @throws Error if the some of the grouped list of values per filter exceeds the max allowed length
  */
-export function validateSplitFilters(log: ILogger, maybeSplitFilters: any): ISplitFiltersValidation {
+export function validateSplitFilters(log: ILogger, maybeSplitFilters: any, mode: string): ISplitFiltersValidation {
   // Validation result schema
   const res = {
     validFilters: [],
@@ -145,6 +147,11 @@ export function validateSplitFilters(log: ILogger, maybeSplitFilters: any): ISpl
 
   // do nothing if `splitFilters` param is not a non-empty array or mode is not STANDALONE
   if (!maybeSplitFilters) return res;
+  // Warn depending on the mode
+  if (mode === CONSUMER_MODE || mode === CONSUMER_PARTIAL_MODE) {
+    log.warn(WARN_SPLITS_FILTER_IGNORED);
+    return res;
+  }
   // Check collection type
   if (!Array.isArray(maybeSplitFilters) || maybeSplitFilters.length === 0) {
     log.warn(WARN_SPLITS_FILTER_EMPTY);