Pull request: 4535-list-services

Updates #4535.

* commit '986124948a21b5dfebb0bd6a9f948911b0a4b938':
  all: imp client, add api chlog
  filtering: imp code
  Add '/blocked_services/services' API

AGHTechDoc.md

@@ -1355,6 +1355,19 @@ Internally, all supported services are stored as a map:
 	service name -> list of rules
 
 
+### API: Get blocked services list of available services
+
+Request:
+
+	GET /control/blocked_services/services
+
+Response:
+
+	200 OK
+
+	[ "name1", ... ]
+
+
 ### API: Get blocked services list
 
 Request:

CHANGELOG.md

@@ -20,6 +20,11 @@ and this project adheres to
 - Weaker cipher suites that use the CBC (cipher block chaining) mode of
   operation have been disabled ([#2993]).
 
+### Added
+
+- A new HTTP API, `GET /control/blocked_services/services`, that lists all
+  available blocked services ([#4535]).
+
 ### Deprecated
 
 - Ports 784 and 8853 for DNS-over-QUIC in Docker images.  Users who still serve
@@ -34,6 +39,7 @@ and this project adheres to
 - Unnecessary logging of non-critical statistics errors ([#4850]).
 
 [#2993]: https://github.com/AdguardTeam/AdGuardHome/issues/2993
+[#4535]: https://github.com/AdguardTeam/AdGuardHome/issues/4535
 [#4745]: https://github.com/AdguardTeam/AdGuardHome/issues/4745
 [#4850]: https://github.com/AdguardTeam/AdGuardHome/issues/4850
 
@@ -59,7 +65,7 @@ See also the [v0.107.11 GitHub milestone][ms-v0.107.11].
 
 ### Changed
 
-- DNS-over-QUIC connections now use keptalive.
+- DNS-over-QUIC connections now use keepalive.
 
 ### Fixed
 

client/src/actions/services.js

@@ -2,6 +2,21 @@ import { createAction } from 'redux-actions';
 import apiClient from '../api/Api';
 import { addErrorToast, addSuccessToast } from './toasts';
 
+export const getBlockedServicesAvailableServicesRequest = createAction('GET_BLOCKED_SERVICES_AVAILABLE_SERVICES_REQUEST');
+export const getBlockedServicesAvailableServicesFailure = createAction('GET_BLOCKED_SERVICES_AVAILABLE_SERVICES_FAILURE');
+export const getBlockedServicesAvailableServicesSuccess = createAction('GET_BLOCKED_SERVICES_AVAILABLE_SERVICES_SUCCESS');
+
+export const getBlockedServicesAvailableServices = () => async (dispatch) => {
+    dispatch(getBlockedServicesAvailableServicesRequest());
+    try {
+        const data = await apiClient.getBlockedServicesAvailableServices();
+        dispatch(getBlockedServicesAvailableServicesSuccess(data));
+    } catch (error) {
+        dispatch(addErrorToast({ error }));
+        dispatch(getBlockedServicesAvailableServicesFailure());
+    }
+};
+
 export const getBlockedServicesRequest = createAction('GET_BLOCKED_SERVICES_REQUEST');
 export const getBlockedServicesFailure = createAction('GET_BLOCKED_SERVICES_FAILURE');
 export const getBlockedServicesSuccess = createAction('GET_BLOCKED_SERVICES_SUCCESS');

client/src/api/Api.js

@@ -481,10 +481,17 @@ class Api {
     }
 
     // Blocked services
+    BLOCKED_SERVICES_SERVICES = { path: 'blocked_services/services', method: 'GET' };
+
     BLOCKED_SERVICES_LIST = { path: 'blocked_services/list', method: 'GET' };
 
     BLOCKED_SERVICES_SET = { path: 'blocked_services/set', method: 'POST' };
 
+    getBlockedServicesAvailableServices() {
+        const { path, method } = this.BLOCKED_SERVICES_SERVICES;
+        return this.makeRequest(path, method);
+    }
+
     getBlockedServices() {
         const { path, method } = this.BLOCKED_SERVICES_LIST;
         return this.makeRequest(path, method);

client2/src/lib/apis/blockedServices.ts

@@ -1,6 +1,18 @@
 // This file was autogenerated. Please do not change.
 // All changes will be overwrited on commit.
 export default class BlockedServicesApi {
+    static async blockedServicesAvailableServices(): Promise<string[] | Error> {
+        return await fetch(`/control/blocked_services/services`, {
+            method: 'GET',
+        }).then(async (res) => {
+            if (res.status === 200) {
+                return res.json();
+            } else {
+                return new Error(String(res.status));
+            }
+        })
+    }
+
     static async blockedServicesList(): Promise<string[] | Error> {
         return await fetch(`/control/blocked_services/list`, {
             method: 'GET',

internal/filtering/blocked.go

@@ -7,19 +7,21 @@ import (
 	"github.com/AdguardTeam/AdGuardHome/internal/aghhttp"
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/AdguardTeam/urlfilter/rules"
+	"golang.org/x/exp/slices"
 )
 
-var serviceRules map[string][]*rules.NetworkRule // service name -> filtering rules
-
+// svc represents a single blocked service.
 type svc struct {
 	name  string
 	rules []string
 }
 
+// servicesData contains raw blocked service data.
+//
 // Keep in sync with:
-// client/src/helpers/constants.js
-// client/src/components/ui/Icons.js
-var serviceRulesArray = []svc{{
+//   - client/src/helpers/constants.js
+//   - client/src/components/ui/Icons.js
+var servicesData = []svc{{
 	name: "whatsapp",
 	rules: []string{
 		"||wa.me^",
@@ -365,21 +367,38 @@ var serviceRulesArray = []svc{{
 	},
 }}
 
-// convert array to map
+// serviceRules maps a service ID to its filtering rules.
+var serviceRules map[string][]*rules.NetworkRule
+
+// serviceIDs contains service IDs sorted alphabetically.
+var serviceIDs []string
+
+// initBlockedServices initializes package-level blocked service data.
 func initBlockedServices() {
-	serviceRules = make(map[string][]*rules.NetworkRule)
-	for _, s := range serviceRulesArray {
-		netRules := []*rules.NetworkRule{}
+	l := len(servicesData)
+	serviceIDs = make([]string, l)
+	serviceRules = make(map[string][]*rules.NetworkRule, l)
+
+	for i, s := range servicesData {
+		netRules := make([]*rules.NetworkRule, 0, len(s.rules))
 		for _, text := range s.rules {
 			rule, err := rules.NewNetworkRule(text, BlockedSvcsListID)
 			if err != nil {
-				log.Error("rules.NewNetworkRule: %s  rule: %s", err, text)
+				log.Error("parsing blocked service %q rule %q: %s", s.name, text, err)
+
 				continue
 			}
+
 			netRules = append(netRules, rule)
 		}
+
+		serviceIDs[i] = s.name
 		serviceRules[s.name] = netRules
 	}
+
+	slices.Sort(serviceIDs)
+
+	log.Debug("filtering: initialized %d services", l)
 }
 
 // BlockedSvcKnown - return TRUE if a blocked service name is known
@@ -411,6 +430,16 @@ func (d *DNSFilter) ApplyBlockedServices(setts *Settings, list []string, global
 	}
 }
 
+func (d *DNSFilter) handleBlockedServicesAvailableServices(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+	err := json.NewEncoder(w).Encode(serviceIDs)
+	if err != nil {
+		aghhttp.Error(r, w, http.StatusInternalServerError, "encoding available services: %s", err)
+
+		return
+	}
+}
+
 func (d *DNSFilter) handleBlockedServicesList(w http.ResponseWriter, r *http.Request) {
 	d.confLock.RLock()
 	list := d.Config.BlockedServices
@@ -419,7 +448,7 @@ func (d *DNSFilter) handleBlockedServicesList(w http.ResponseWriter, r *http.Req
 	w.Header().Set("Content-Type", "application/json")
 	err := json.NewEncoder(w).Encode(list)
 	if err != nil {
-		aghhttp.Error(r, w, http.StatusInternalServerError, "json.Encode: %s", err)
+		aghhttp.Error(r, w, http.StatusInternalServerError, "encoding services: %s", err)
 
 		return
 	}
@@ -445,6 +474,7 @@ func (d *DNSFilter) handleBlockedServicesSet(w http.ResponseWriter, r *http.Requ
 
 // registerBlockedServicesHandlers - register HTTP handlers
 func (d *DNSFilter) registerBlockedServicesHandlers() {
+	d.Config.HTTPRegister(http.MethodGet, "/control/blocked_services/services", d.handleBlockedServicesAvailableServices)
 	d.Config.HTTPRegister(http.MethodGet, "/control/blocked_services/list", d.handleBlockedServicesList)
 	d.Config.HTTPRegister(http.MethodPost, "/control/blocked_services/set", d.handleBlockedServicesSet)
 }

internal/filtering/filtering.go

@@ -296,8 +296,10 @@ func cloneRewrites(entries []*LegacyRewrite) (clone []*LegacyRewrite) {
 	return clone
 }
 
-// SetFilters - set new filters (synchronously or asynchronously)
-// When filters are set asynchronously, the old filters continue working until the new filters are ready.
+// SetFilters sets new filters, synchronously or asynchronously.  When filters
+// are set asynchronously, the old filters continue working until the new
+// filters are ready.
+//
 // In this case the caller must ensure that the old filter files are intact.
 func (d *DNSFilter) SetFilters(blockFilters, allowFilters []Filter, async bool) error {
 	if async {

internal/filtering/rewrites.go

@@ -130,10 +130,9 @@ func matchDomainWildcard(host, wildcard string) (ok bool) {
 //
 // The sorting priority:
 //
-//   A and AAAA > CNAME
-//   wildcard > exact
-//   lower level wildcard > higher level wildcard
-//
+//  1. A and AAAA > CNAME
+//  2. wildcard > exact
+//  3. lower level wildcard > higher level wildcard
 type rewritesSorted []*LegacyRewrite
 
 // Len implements the sort.Interface interface for legacyRewritesSorted.

openapi/CHANGELOG.md

@@ -4,6 +4,15 @@
 
 ## v0.108.0: API changes
 
+## v0.107.12: API changes
+
+### `GET /control/blocked_services/services`
+
+* The new `GET /control/blocked_services/services` HTTP API allows inspecting
+  all available services.
+
+## v0.107.7: API changes
+
 ### The new optional field `"ecs"` in `QueryLogItem`
 
 * The new optional field `"ecs"` in `GET /control/querylog` contains the IP

openapi/openapi.yaml

@@ -874,6 +874,19 @@
       'summary': 'Set (dis)allowed clients, blocked hosts, etc.'
       'tags':
       - 'clients'
+  '/blocked_services/services':
+    'get':
+      'tags':
+      - 'blocked_services'
+      'operationId': 'blockedServicesAvailableServices'
+      'summary': 'Get available services to use for blocking'
+      'responses':
+        '200':
+          'description': 'OK.'
+          'content':
+            'application/json':
+              'schema':
+                '$ref': '#/components/schemas/BlockedServicesArray'
   '/blocked_services/list':
     'get':
       'tags':