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Pull request: 3419 client allowlist collision 

Updates #3419.

Squashed commit of the following:

commit 370094c00d9c15b1336fbedb1e233bd4436c9898
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Fri Sep 10 17:31:16 2021 +0300

    added link to github issue

commit 407ba9b2db46b887a30ddb081bd37c56e56b0496
Merge: 426c8146 80548233
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Fri Sep 10 17:29:52 2021 +0300

    Merge branch 'master' into 3419-client-allowlist-collision

commit 426c8146cff5c112ebb25192af276c6601200528
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Fri Sep 10 16:28:11 2021 +0300

    fix en

commit d28c6022321828c6bdc55c3f9a4f655b26d146d2
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Fri Sep 10 15:49:12 2021 +0300

    added missing space

commit b374a09327968ca5343c1595d1ab8cf317c15ffe
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Fri Sep 10 15:43:55 2021 +0300

    fixes after review

commit 2be629d66e4703e2f5a85615bf1eaaa92e03c6fd
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Thu Sep 9 14:17:19 2021 +0300

    fixes

commit 5c2aa6201cc0ecf404d4057e354fbb0bdadcdd6d
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Wed Sep 8 15:04:30 2021 +0300

    return empty line to locale file

commit 3631c3772babbd595b1c3de4a7e91be6bac3e80f
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Wed Sep 8 13:57:51 2021 +0300

    all: fix collisions in access lists && expand block/unblock client
This commit is contained in:
Dmitry Seregin 2021-09-10 17:57:09 +03:00 committed by Ainar Garipov
parent 80548233ba
commit 8fdd789474
13 changed files with 238 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CHANGELOG.md
View File

@ -46,6 +46,8 @@ and this project adheres to
### Changed
- Items in allowed clients, disallowed clients, and blocked hosts lists must
be unique ([#3419]).
- The TLS private key previously saved as a string isn't shown in API responses
any more ([#1898]).
- Better OpenWrt detection ([#3435]).
@ -178,6 +180,7 @@ In this release, the schema version has changed from 10 to 12.
[#3351]: https://github.com/AdguardTeam/AdGuardHome/issues/3351
[#3372]: https://github.com/AdguardTeam/AdGuardHome/issues/3372
[#3417]: https://github.com/AdguardTeam/AdGuardHome/issues/3417
[#3419]: https://github.com/AdguardTeam/AdGuardHome/issues/3419
[#3435]: https://github.com/AdguardTeam/AdGuardHome/issues/3435
[#3437]: https://github.com/AdguardTeam/AdGuardHome/issues/3437
[#3443]: https://github.com/AdguardTeam/AdGuardHome/issues/3443

3
client/src/__locales/en.json
View File

@ -613,7 +613,8 @@
"click_to_view_queries": "Click to view queries",
"port_53_faq_link": "Port 53 is often occupied by \"DNSStubListener\" or \"systemd-resolved\" services. Please read <0>this instruction</0> on how to resolve this.",
"adg_will_drop_dns_queries": "AdGuard Home will be dropping all DNS queries from this client.",
"client_not_in_allowed_clients": "The client is not allowed because it is not in the \"Allowed clients\" list.",
"filter_allowlist": "WARNING: This action also will exclude the rule \"{{disallowed_rule}}\" from the list of allowed clients.",
"last_rule_in_allowlist": "Cannot disallow this client because excluding the rule \"{{disallowed_rule}}\" will DISABLE \"Allowed clients\" list.",
"experimental": "Experimental",
"use_saved_key": "Use the previously saved key"
}

25
client/src/actions/access.js
View File

@ -52,25 +52,34 @@ export const toggleClientBlock = (ip, disallowed, disallowed_rule) => async (dis
dispatch(toggleClientBlockRequest());
try {
const accessList = await apiClient.getAccessList();
const allowed_clients = accessList.allowed_clients ?? [];
const blocked_hosts = accessList.blocked_hosts ?? [];
const disallowed_clients = accessList.disallowed_clients ?? [];
const updatedDisallowedClients = disallowed
? disallowed_clients.filter((client) => client !== disallowed_rule)
: disallowed_clients.concat(ip);
let allowed_clients = accessList.allowed_clients ?? [];
let disallowed_clients = accessList.disallowed_clients ?? [];
if (disallowed) {
if (!disallowed_rule) {
allowed_clients = allowed_clients.concat(ip);
} else {
disallowed_clients = disallowed_clients
.filter((client) => client !== disallowed_rule);
}
} else if (allowed_clients.length > 1) {
allowed_clients = allowed_clients
.filter((client) => client !== disallowed_rule);
} else {
disallowed_clients = disallowed_clients.concat(ip);
}
const values = {
allowed_clients,
blocked_hosts,
disallowed_clients: updatedDisallowedClients,
disallowed_clients,
};
await apiClient.setAccessList(values);
dispatch(toggleClientBlockSuccess(values));
if (disallowed) {
dispatch(addSuccessToast(i18next.t('client_unblocked', { ip: disallowed_rule })));
dispatch(addSuccessToast(i18next.t('client_unblocked', { ip: disallowed_rule || ip })));
} else {
dispatch(addSuccessToast(i18next.t('client_blocked', { ip })));
}

23
client/src/components/Dashboard/Clients.js
View File

@ -38,15 +38,23 @@ const renderBlockingButton = (ip, disallowed, disallowed_rule) => {
const dispatch = useDispatch();
const { t } = useTranslation();
const processingSet = useSelector((state) => state.access.processingSet);
const allowedСlients = useSelector((state) => state.access.allowed_clients, shallowEqual);
const buttonClass = classNames('button-action button-action--main', {
'button-action--unblock': disallowed,
});
const toggleClientStatus = async (ip, disallowed, disallowed_rule) => {
const confirmMessage = disallowed
? t('client_confirm_unblock', { ip: disallowed_rule })
: `${t('adg_will_drop_dns_queries')} ${t('client_confirm_block', { ip })}`;
let confirmMessage;
if (disallowed) {
confirmMessage = t('client_confirm_unblock', { ip: disallowed_rule || ip });
} else {
confirmMessage = `${t('adg_will_drop_dns_queries')} ${t('client_confirm_block', { ip })}`;
if (allowedСlients.length > 0) {
confirmMessage = confirmMessage.concat(`\n\n${t('filter_allowlist', { disallowed_rule })}`);
}
}
if (window.confirm(confirmMessage)) {
await dispatch(toggleClientBlock(ip, disallowed, disallowed_rule));
@ -58,15 +66,16 @@ const renderBlockingButton = (ip, disallowed, disallowed_rule) => {
const text = disallowed ? BLOCK_ACTIONS.UNBLOCK : BLOCK_ACTIONS.BLOCK;
const isNotInAllowedList = disallowed && disallowed_rule === '';
const lastRuleInAllowlist = !disallowed && allowedСlients === disallowed_rule;
const disabled = processingSet || lastRuleInAllowlist;
return (
<div className="table__action pl-4">
<button
type="button"
className={buttonClass}
onClick={isNotInAllowedList ? undefined : onClick}
disabled={isNotInAllowedList || processingSet}
title={t(isNotInAllowedList ? 'client_not_in_allowed_clients' : text)}
onClick={onClick}
disabled={disabled}
title={lastRuleInAllowlist ? t('last_rule_in_allowlist', { disallowed_rule }) : ''}
>
<Trans>{text}</Trans>
</button>

7
client/src/components/Logs/Cells/ClientCell.js
View File

@ -28,6 +28,8 @@ const ClientCell = ({
const autoClients = useSelector((state) => state.dashboard.autoClients, shallowEqual);
const processingRules = useSelector((state) => state.filtering.processingRules);
const isDetailed = useSelector((state) => state.queryLogs.isDetailed);
const processingSet = useSelector((state) => state.access.processingSet);
const allowedСlients = useSelector((state) => state.access.allowed_clients, shallowEqual);
const [isOptionsOpened, setOptionsOpened] = useState(false);
const autoClient = autoClients.find((autoClient) => autoClient.name === client);
@ -71,11 +73,12 @@ const ClientCell = ({
const {
confirmMessage,
buttonKey: blockingClientKey,
isNotInAllowedList,
lastRuleInAllowlist,
} = getBlockClientInfo(
client,
client_info?.disallowed || false,
client_info?.disallowed_rule || '',
allowedСlients,
);
const blockingForClientKey = isFiltered ? 'unblock_for_this_client_only' : 'block_for_this_client_only';
@ -100,7 +103,7 @@ const ClientCell = ({
await dispatch(updateLogs());
}
},
disabled: isNotInAllowedList,
disabled: processingSet || lastRuleInAllowlist,
},
];

19
client/src/components/Logs/Cells/helpers/index.js
View File

@ -2,17 +2,24 @@ import i18next from 'i18next';
export const BUTTON_PREFIX = 'btn_';
export const getBlockClientInfo = (ip, disallowed, disallowed_rule) => {
const confirmMessage = disallowed
? i18next.t('client_confirm_unblock', { ip: disallowed_rule })
: `${i18next.t('adg_will_drop_dns_queries')} ${i18next.t('client_confirm_block', { ip })}`;
export const getBlockClientInfo = (ip, disallowed, disallowed_rule, allowedСlients) => {
let confirmMessage;
if (disallowed) {
confirmMessage = i18next.t('client_confirm_unblock', { ip: disallowed_rule || ip });
} else {
confirmMessage = `${i18next.t('adg_will_drop_dns_queries')} ${i18next.t('client_confirm_block', { ip })}`;
if (allowedСlients.length > 0) {
confirmMessage = confirmMessage.concat(`\n\n${i18next.t('filter_allowlist', { disallowed_rule })}`);
}
}
const buttonKey = i18next.t(disallowed ? 'allow_this_client' : 'disallow_this_client');
const isNotInAllowedList = disallowed && disallowed_rule === '';
const lastRuleInAllowlist = !disallowed && allowedСlients === disallowed_rule;
return {
confirmMessage,
buttonKey,
isNotInAllowedList,
lastRuleInAllowlist,
};
};

7
client/src/components/Logs/Cells/index.js
View File

@ -50,6 +50,8 @@ const Row = memo(({
const filters = useSelector((state) => state.filtering.filters, shallowEqual);
const whitelistFilters = useSelector((state) => state.filtering.whitelistFilters, shallowEqual);
const autoClients = useSelector((state) => state.dashboard.autoClients, shallowEqual);
const processingSet = useSelector((state) => state.access.processingSet);
const allowedСlients = useSelector((state) => state.access.allowed_clients, shallowEqual);
const clients = useSelector((state) => state.dashboard.clients);
@ -104,11 +106,12 @@ const Row = memo(({
const {
confirmMessage,
buttonKey: blockingClientKey,
isNotInAllowedList,
lastRuleInAllowlist,
} = getBlockClientInfo(
client,
client_info?.disallowed || false,
client_info?.disallowed_rule || '',
allowedСlients,
);
const blockingForClientKey = isFiltered ? 'unblock_for_this_client_only' : 'block_for_this_client_only';
@ -147,7 +150,7 @@ const Row = memo(({
const blockClientButton = <button
className='text-center font-weight-bold py-2 button-action--arrow-option'
onClick={onBlockingClientClick}
disabled={isNotInAllowedList}>
disabled={processingSet || lastRuleInAllowlist}>
{t(blockingClientKey)}
</button>;

2
client/src/components/Logs/index.js
View File

@ -15,6 +15,7 @@ import Disabled from './Disabled';
import { getFilteringStatus } from '../../actions/filtering';
import { getClients } from '../../actions';
import { getDnsConfig } from '../../actions/dnsConfig';
import { getAccessList } from '../../actions/access';
import {
getLogsConfig,
resetFilteredLogs,
@ -126,6 +127,7 @@ const Logs = () => {
await Promise.all([
dispatch(getLogsConfig()),
dispatch(getDnsConfig()),
dispatch(getAccessList()),
]);
} catch (err) {
console.error(err);

42
client/src/components/Settings/Dns/Access/Form.js
View File

@ -1,6 +1,7 @@
import React from 'react';
import PropTypes from 'prop-types';
import { Field, reduxForm } from 'redux-form';
import { connect } from 'react-redux';
import { Field, reduxForm, formValueSelector } from 'redux-form';
import { Trans, withTranslation } from 'react-i18next';
import flow from 'lodash/flow';
import { renderTextareaField } from '../../../../helpers/form';
@ -31,16 +32,20 @@ const fields = [
},
];
const Form = (props) => {
let Form = (props) => {
const {
handleSubmit, submitting, invalid, processingSet,
allowedClients, handleSubmit, submitting, invalid, processingSet,
} = props;
const renderField = ({
id, title, subtitle, disabled = processingSet, normalizeOnBlur,
id, title, subtitle, disabled = false, processingSet, normalizeOnBlur,
}) => <div key={id} className="form__group mb-5">
<label className="form__label form__label--with-desc" htmlFor={id}>
<Trans>{title}</Trans>
{disabled && <>
<span> </span>
(<Trans>disabled</Trans>)
</>}
</label>
<div className="form__desc form__desc--top">
<Trans>{subtitle}</Trans>
@ -51,7 +56,7 @@ const Form = (props) => {
component={renderTextareaField}
type="text"
className="form-control form-control--textarea font-monospace"
disabled={disabled}
disabled={disabled || processingSet}
normalizeOnBlur={normalizeOnBlur}
/>
</div>;
@ -66,7 +71,15 @@ const Form = (props) => {
return (
<form onSubmit={handleSubmit}>
{fields.map(renderField)}
{
fields.map((f) => {
const props = { ...f };
if (allowedClients && f.id === 'disallowed_clients') {
props.disabled = true;
}
return renderField(props);
})
}
<div className="card-actions">
<div className="btn-list">
<button
@ -90,6 +103,21 @@ Form.propTypes = {
processingSet: PropTypes.bool.isRequired,
t: PropTypes.func.isRequired,
textarea: PropTypes.bool,
allowedClients: PropTypes.string,
};
export default flow([withTranslation(), reduxForm({ form: FORM_NAME.ACCESS })])(Form);
const selector = formValueSelector(FORM_NAME.ACCESS);
Form = connect((state) => {
const allowedClients = selector(state, 'allowed_clients');
return {
allowedClients,
};
})(Form);
export default flow([
withTranslation(),
reduxForm({
form: FORM_NAME.ACCESS,
}),
])(Form);

62
internal/dnsforward/access.go
View File

@ -7,6 +7,7 @@ import (
"net/http"
"strings"
"github.com/AdguardTeam/golibs/errors"
"github.com/AdguardTeam/golibs/log"
"github.com/AdguardTeam/golibs/netutil"
"github.com/AdguardTeam/golibs/stringutil"
@ -192,6 +193,60 @@ func (s *Server) handleAccessList(w http.ResponseWriter, r *http.Request) {
}
}
func isUniq(slice []string) (ok bool, uniqueMap map[string]unit) {
exists := make(map[string]unit)
for _, key := range slice {
if _, has := exists[key]; has {
return false, nil
}
exists[key] = unit{}
}
return true, exists
}
func intersect(mapA, mapB map[string]unit) bool {
for key := range mapA {
if _, has := mapB[key]; has {
return true
}
}
return false
}
// validateAccessSet checks the internal accessListJSON lists. To search for
// duplicates, we cannot compare the new stringutil.Set and []string, because
// creating a set for a large array can be an unnecessary algorithmic complexity
func validateAccessSet(list accessListJSON) (err error) {
const (
errAllowedDup errors.Error = "duplicates in allowed clients"
errDisallowedDup errors.Error = "duplicates in disallowed clients"
errBlockedDup errors.Error = "duplicates in blocked hosts"
errIntersect errors.Error = "some items in allowed and " +
"disallowed lists at the same time"
)
ok, allowedClients := isUniq(list.AllowedClients)
if !ok {
return errAllowedDup
}
ok, disallowedClients := isUniq(list.DisallowedClients)
if !ok {
return errDisallowedDup
}
ok, _ = isUniq(list.BlockedHosts)
if !ok {
return errBlockedDup
}
if intersect(allowedClients, disallowedClients) {
return errIntersect
}
return nil
}
func (s *Server) handleAccessSet(w http.ResponseWriter, r *http.Request) {
list := accessListJSON{}
err := json.NewDecoder(r.Body).Decode(&list)
@ -201,6 +256,13 @@ func (s *Server) handleAccessSet(w http.ResponseWriter, r *http.Request) {
return
}
err = validateAccessSet(list)
if err != nil {
httpError(r, w, http.StatusBadRequest, err.Error())
return
}
var a *accessCtx
a, err = newAccessCtx(list.AllowedClients, list.DisallowedClients, list.BlockedHosts)
if err != nil {

71
internal/home/clients.go
View File

@ -285,39 +285,70 @@ func toQueryLogWHOIS(wi *RuntimeClientWHOISInfo) (cw *querylog.ClientWHOIS) {
}
}
// findMultiple is a wrapper around Find to make it a valid client finder for
// the query log. err is always nil.
// findMultiple returns info about client. If no information about the client
// is found, it sends the client by default only with the "Disallowed" field
// filled in. err is always nil.
func (clients *clientsContainer) findMultiple(ids []string) (c *querylog.Client, err error) {
for _, id := range ids {
var name string
whois := &querylog.ClientWHOIS{}
ip := net.ParseIP(id)
var emptyClient *querylog.Client
for _, id := range ids {
ip := net.ParseIP(id)
disallowed, disallowedRule := clients.dnsServer.IsBlockedClient(ip, id)
client := clients.clientInfo(ip, id, disallowed, disallowedRule)
if client.Name == "" && client.DisallowedRule == "" {
emptyClient = client
c, ok := clients.Find(id)
if ok {
name = c.Name
} else if ip != nil {
var rc *RuntimeClient
rc, ok = clients.FindRuntimeClient(ip)
if !ok {
continue
}
name = rc.Host
whois = toQueryLogWHOIS(rc.WHOISInfo)
return client, nil
}
disallowed, disallowedRule := clients.dnsServer.IsBlockedClient(ip, id)
return emptyClient, nil
}
// clientInfo is a wrapper around Find to make it a valid client finder for
// the query log.
func (clients *clientsContainer) clientInfo(
ip net.IP,
id string,
disallowed bool,
rule string,
) (c *querylog.Client) {
whois := &querylog.ClientWHOIS{}
client, ok := clients.Find(id)
if ok {
return &querylog.Client{
Name: name,
DisallowedRule: disallowedRule,
Name: client.Name,
DisallowedRule: rule,
WHOIS: whois,
Disallowed: disallowed,
}, nil
}
}
return nil, nil
if ip == nil {
return nil
}
var rc *RuntimeClient
rc, ok = clients.FindRuntimeClient(ip)
if ok {
return &querylog.Client{
Name: rc.Host,
DisallowedRule: rule,
WHOIS: toQueryLogWHOIS(rc.WHOISInfo),
Disallowed: disallowed,
}
}
return &querylog.Client{
Name: "",
DisallowedRule: rule,
WHOIS: &querylog.ClientWHOIS{},
Disallowed: disallowed,
}
}
func (clients *clientsContainer) Find(id string) (c *Client, ok bool) {

19
openapi/CHANGELOG.md
View File

@ -4,12 +4,25 @@
## v0.107: API changes
### New possible value of `"name"` field in `QueryLogItemClient`
* The value of `"name"` field in `GET /control/querylog` method is never empty:
either persistent client's name or runtime client's hostname.
### Lists in `AccessList`
* Fields `"allowed_clients"`, `"disallowed_clients"` and `"blocked_hosts"` in
`POST /access/set` now should contain only unique elements.
* Fields `"allowed_clients"` and `"disallowed_clients"` cannot contain the same
elements.
### The new field `"private_key_saved"` in `TlsConfig`
* The new field `"private_key_saved"` in `POST /control/tls/configure`,
`POST /control/tls/validate` and `GET /control/tls/status` is true if the
private key was previously saved as a string and now the private key omitted
from communication between server and client due to security issues.
`POST /control/tls/validate` and `GET /control/tls/status` is true if the
private key was previously saved as a string and now the private key omitted
from communication between server and client due to security issues.
### The new field `"cache_optimistic"` in DNS configuration

8
openapi/openapi.yaml
View File

@ -1962,8 +1962,7 @@
The rule due to which the client is allowed or blocked.
'name':
'description': >
Persistent client's name or an empty string if this is a runtime
client.
Persistent client's name or runtime client's hostname.
'type': 'string'
'whois':
'$ref': '#/components/schemas/QueryLogItemClientWhois'
@ -2363,7 +2362,10 @@
'AccessSetRequest':
'$ref': '#/components/schemas/AccessList'
'AccessList':
'description': 'Client and host access list'
'description': >
Client and host access list. Each of the lists should contain only
unique elements. In addition, allowed and disallowed lists cannot
contain the same elements.
'properties':
'allowed_clients':
'description': >