From f95829adc6020fb263ed13bc25f8e23baf08281c Mon Sep 17 00:00:00 2001
From: baldo <baldo@toppoint.de>
Date: Fri, 17 Jun 2022 15:30:29 +0200
Subject: [PATCH] Admin: Added filter / search panel to nodes list.

---
 frontend/src/App.vue                          |  38 ++
 frontend/src/components/Pager.vue             |   1 -
 .../src/components/admin/StatisticsCard.vue   |  12 +-
 .../src/components/nodes/NodesFilterPanel.vue | 382 ++++++++++++++++++
 frontend/src/components/page/PageFooter.vue   |   7 -
 frontend/src/components/page/PageHeader.vue   |   6 -
 frontend/src/main.ts                          |   5 +
 frontend/src/router/index.ts                  |  22 +-
 frontend/src/scss/_variables.scss             |  31 +-
 frontend/src/stores/nodes.ts                  |  10 +-
 frontend/src/stores/version.ts                |   6 +-
 frontend/src/views/AdminNodesView.vue         |  72 +++-
 server/types/shared.ts                        |  21 +-
 13 files changed, 568 insertions(+), 45 deletions(-)
 create mode 100644 frontend/src/components/nodes/NodesFilterPanel.vue

diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index 04bf32f..a46af30 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -32,5 +32,43 @@ main {
 a {
     color: $link-color;
     text-decoration: none;
+
+    &:hover {
+        color: $link-hover-color;
+    }
+
+    &:focus {
+        outline: 0.1em solid $link-hover-color;
+    }
+}
+
+button {
+    padding: $button-padding;
+    border-radius: $button-border-radius;
+    border-width: $button-border-width;
+    border-style: $button-border-style;
+
+    cursor: pointer;
+
+    @each $variant, $color in $variant-colors {
+        &.#{$variant} {
+            background-color: map-get($variant-text-colors, $variant);
+            border-color: $color;
+            color: $color;
+
+            &:hover, &:active {
+                background-color: $color;
+                border-color: $color;
+                color: map-get($variant-text-colors, $variant);
+            }
+
+            &:focus {
+                background-color: $color;
+                border-color: $page-background-color;
+                color: map-get($variant-text-colors, $variant);
+                outline: 0.1em solid $color;
+            }
+        }
+    }
 }
 </style>
diff --git a/frontend/src/components/Pager.vue b/frontend/src/components/Pager.vue
index c738ced..d9f7c26 100644
--- a/frontend/src/components/Pager.vue
+++ b/frontend/src/components/Pager.vue
@@ -17,7 +17,6 @@ const props = defineProps({
 });
 
 const firstItem = computed(() => {
-    console.log(props.totalItems, props.page, props.itemsPerPage);
     return Math.min(props.totalItems, (props.page - 1) * props.itemsPerPage + 1)
 });
 const lastItem = computed(() => Math.min(props.totalItems, firstItem.value + props.itemsPerPage - 1));
diff --git a/frontend/src/components/admin/StatisticsCard.vue b/frontend/src/components/admin/StatisticsCard.vue
index 24400ba..98f47c7 100644
--- a/frontend/src/components/admin/StatisticsCard.vue
+++ b/frontend/src/components/admin/StatisticsCard.vue
@@ -17,7 +17,9 @@ const linkTarget = computed(() => {
     if (props.filter) {
         return {
             path: props.link,
-            query: props.filter,
+            query: {
+                filter: JSON.stringify(props.filter),
+            },
         }
     } else {
         return props.link;
@@ -47,11 +49,19 @@ const linkTarget = computed(() => {
     padding: $statistics-card-padding;
 
     border-radius: $statistics-card-border-radius;
+    border-width: 0.2em;
+    border-style: solid;
 
     @each $variant, $color in $variant-colors {
         &.statistics-card-#{$variant} {
             background-color: $color;
             color: map-get($variant-text-colors, $variant);
+            border-color: $color;
+
+            &:focus {
+                border-color: $page-background-color;
+                outline: 0.2em solid $color;
+            }
         }
     }
 
diff --git a/frontend/src/components/nodes/NodesFilterPanel.vue b/frontend/src/components/nodes/NodesFilterPanel.vue
new file mode 100644
index 0000000..f308b0b
--- /dev/null
+++ b/frontend/src/components/nodes/NodesFilterPanel.vue
@@ -0,0 +1,382 @@
+<script setup lang="ts">
+import {
+    isMap,
+    isNodesFilter,
+    isString,
+    MonitoringState,
+    NODES_FILTER_FIELDS,
+    type NodesFilter,
+    OnlineState,
+    type UnixTimestampMilliseconds,
+} from "@/types";
+import {computed, nextTick, onMounted, ref, watch} from "vue";
+import {useConfigStore} from "@/stores/config";
+
+interface Props {
+    filter: NodesFilter;
+}
+
+const SEARCH_THROTTLE_DELAY_MS = 500;
+
+const FILTER_LABELS: Record<string, string | Map<any, any>> = {
+    hasKey: new Map([
+        [true, "Mit VPN-Schlüssel"],
+        [false, "Ohne VPN-Schlüssel"],
+    ]),
+    hasCoords: new Map([
+        [true, "Mit Koordinaten"],
+        [false, "Ohne Koordinaten"],
+    ]),
+    monitoringState: new Map([
+        [MonitoringState.ACTIVE, "Monitoring: aktiv"],
+        [MonitoringState.PENDING, "Monitoring: Bestätigung ausstehend"],
+        [MonitoringState.DISABLED, "Monitoring: nicht aktiv"],
+    ]),
+    site: "Site",
+    domain: "Domäne",
+    onlineState: new Map([
+        [OnlineState.ONLINE, "online"],
+        [OnlineState.OFFLINE, "offline"],
+    ]),
+}
+
+const emit = defineEmits<{
+    (e: "updateFilter", filter: NodesFilter, searchTerm?: string): void,
+}>();
+
+const props = defineProps<Props>();
+const input = ref();
+const hasFocus = ref(false);
+const suggestedFiltersExpanded = ref(false);
+const config = useConfigStore();
+
+type Filter = {
+    field: string,
+    value: any,
+};
+const selectedFilters = ref<Filter[]>([]);
+
+function selectedFilterIndex(filter: Filter): number {
+    for (let i = 0; i < selectedFilters.value.length; i += 1) {
+        const selectedFilter = selectedFilters.value[i];
+        if (selectedFilter.field === filter.field && selectedFilter.value === filter.value) {
+            return i;
+        }
+    }
+
+    return -1;
+}
+
+function selectedFilterIndexForField(field: string): number {
+    for (let i = 0; i < selectedFilters.value.length; i += 1) {
+        const selectedFilter = selectedFilters.value[i];
+        if (selectedFilter.field === field) {
+            return i;
+        }
+    }
+
+    return -1;
+}
+
+const suggestedFilters = computed<Filter[][]>(() => {
+    const cfg = config.getConfig;
+    const sites = cfg?.community.sites || [];
+    const domains = cfg?.community.domains || [];
+
+    const filterGroups: Filter[][] = [];
+
+    for (const field of Object.keys(NODES_FILTER_FIELDS)) {
+        const filterGroup: Filter[] = []
+
+        function pushFilter(filter: Filter): void {
+            if (selectedFilterIndex(filter) < 0) {
+                filterGroup.push(filter);
+            }
+        }
+
+        switch (field) {
+            case "site":
+                for (const site of sites) {
+                    pushFilter({
+                        field: "site",
+                        value: site,
+                    });
+                }
+                break;
+
+            case "domain":
+                for (const domain of domains) {
+                    pushFilter({
+                        field: "domain",
+                        value: domain,
+                    });
+                }
+                break;
+
+            default:
+                const labels = FILTER_LABELS[field];
+                if (!isMap(labels)) {
+                    throw new Error(`Missing case for field ${field}.`);
+                }
+
+                for (const value of labels.keys()) {
+                    pushFilter({
+                        field,
+                        value,
+                    });
+                }
+        }
+
+        filterGroups.push(filterGroup);
+    }
+    return filterGroups;
+});
+
+function addSelectedFilter(filter: Filter): void {
+    const i = selectedFilterIndexForField(filter.field);
+    if (i >= 0) {
+        selectedFilters.value.splice(selectedFilterIndex(filter), 1);
+    }
+    selectedFilters.value.push(filter);
+    doSearch();
+}
+
+function removeSelectedFilter(filter: Filter): void {
+    selectedFilters.value.splice(selectedFilterIndex(filter), 1);
+    doSearch();
+}
+
+function updateSelectedFilters() {
+    const filter = props.filter as Record<string, any>;
+    selectedFilters.value = [];
+    for (const field of Object.keys(NODES_FILTER_FIELDS)) {
+        if (filter.hasOwnProperty(field)) {
+            addSelectedFilter({
+                field,
+                value: filter[field],
+            });
+        }
+    }
+}
+
+watch(props, updateSelectedFilters);
+onMounted(updateSelectedFilters);
+
+function renderFilter(filter: Filter): string {
+    if (!FILTER_LABELS.hasOwnProperty(filter.field)) {
+        throw new Error(`Filter has no translation: ${filter.field}`);
+    }
+
+    const label = FILTER_LABELS[filter.field];
+    if (isString(label)) {
+        return `${label}: ${filter.value}`;
+    }
+
+    if (!label.has(filter.value)) {
+        throw new Error(`Filter ${filter.field} has no translation for value: ${filter.value}(${typeof filter.value})`);
+    }
+
+    return label.get(filter.value);
+}
+
+function setFocus(focus: boolean): void {
+    hasFocus.value = focus;
+}
+
+function focusInput(): void {
+    nextTick(() => input.value.focus());
+}
+
+function showSuggestedFilters(expanded: boolean): void {
+    suggestedFiltersExpanded.value = expanded;
+}
+
+function buildNodesFilter(): NodesFilter {
+    const nodesFilter: Record<string, any> = {};
+    for (const filter of selectedFilters.value) {
+        nodesFilter[filter.field] = filter.value;
+    }
+    if (!isNodesFilter(nodesFilter)) {
+        throw new Error(`Invalid nodes filter: ${JSON.stringify(nodesFilter)}`);
+    }
+    return nodesFilter;
+}
+
+let lastSearchTimestamp: UnixTimestampMilliseconds = 0;
+let searchTimeout: NodeJS.Timeout | undefined = undefined;
+let lastSearchTerm = "";
+
+function doSearch(): void {
+    const nodesFilter = buildNodesFilter();
+    lastSearchTerm = input.value.value;
+    let searchTerm: string | undefined = lastSearchTerm.trim();
+    if (!searchTerm) {
+        searchTerm = undefined;
+    }
+    emit("updateFilter", nodesFilter, searchTerm);
+}
+
+function doThrottledSearch(): void {
+    if (lastSearchTerm === input.value.value) {
+        return
+    }
+
+    const now: UnixTimestampMilliseconds = Date.now();
+    if (now - SEARCH_THROTTLE_DELAY_MS >= lastSearchTimestamp) {
+        lastSearchTimestamp = now;
+        doSearch();
+    } else if (!searchTimeout) {
+        searchTimeout = setTimeout(() => {
+            searchTimeout = undefined
+            doThrottledSearch();
+        }, SEARCH_THROTTLE_DELAY_MS);
+    }
+}
+</script>
+
+<template>
+    <div :class="{ 'nodes-filter-panel': true, 'focus': hasFocus}" @click="focusInput">
+        <div class="nodes-filter-input">
+            <div class="selected-filters">
+                <span
+                    v-for="filter in selectedFilters"
+                    class="selected-filter"
+                    @click="removeSelectedFilter(filter)"
+                    :title="renderFilter(filter)">
+                    {{ renderFilter(filter) }}
+                    <i
+                        class="fa fa-times remove-filter"
+                        aria-hidden="true"
+                        title="Filter entfernen"/>
+                </span>
+            </div>
+            <input
+                ref="input"
+                @focus="setFocus(true)"
+                @blur="setFocus(false)"
+                @keyup="doThrottledSearch()"
+                maxlength="64"
+                type="search"
+                placeholder="Knoten durchsuchen..."/>
+            <i class="fa fa-search search" @click="doSearch()"/>
+        </div>
+        <div class="suggested-filters" v-if="suggestedFiltersExpanded">
+            <div class="suggested-filter-group" v-for="filterGroup in suggestedFilters">
+                <span
+                    class="suggested-filter"
+                    v-for="filter in filterGroup"
+                    @click="addSelectedFilter(filter)"
+                    :title="renderFilter(filter)">
+                    {{ renderFilter(filter) }}
+                    <i
+                        class="fa fa-plus add-filter"
+                        aria-hidden="true"
+                        title="Filter hinzufügen"/>
+                </span>
+            </div>
+        </div>
+    </div>
+    <a
+        v-if="suggestedFiltersExpanded"
+        class="toggle-suggested-filters"
+        href="javascript:"
+        @click="showSuggestedFilters(false)">
+        Erweiterte Suche ausblenden
+    </a>
+    <a
+        v-if="!suggestedFiltersExpanded"
+        class="toggle-suggested-filters"
+        href="javascript:"
+        @click="showSuggestedFilters(true)">
+        Erweiterte Suche einblenden
+    </a>
+</template>
+
+<style lang="scss" scoped>
+@import "../../scss/variables";
+
+.nodes-filter-panel {
+    position: relative;
+    background-color: $input-background-color;
+    border-radius: $input-border-radius;
+    border: $input-border;
+
+    &.focus {
+        outline: $input-focus-outline;
+    }
+
+    .nodes-filter-input {
+        display: flex;
+        margin: 0 0.25em;
+    }
+
+    .selected-filters {
+        margin: 0.3em 0.25em 0.3em 0;
+        max-width: 60%;
+    }
+
+    .selected-filter,
+    .suggested-filter {
+        cursor: pointer;
+        margin: 0.1em 0.25em 0.1em 0;
+        padding: 0.25em 0.5em;
+        border-radius: 0.75em;
+        font-size: 0.75em;
+        color: $nodes-filter-panel-pill-text-color;
+        background-color: $nodes-filter-panel-pill-background-color;
+        font-weight: $nodes-filter-panel-pill-font-weight;
+        user-select: none;
+        white-space: nowrap;
+
+        .add-filter, .remove-filter {
+            margin-left: 0.25em;
+        }
+    }
+
+    .selected-filters, .suggested-filter-group {
+        display: flex;
+        flex-wrap: wrap;
+        align-items: flex-start;
+        overflow: hidden;
+
+        span {
+            display: block;
+        }
+    }
+
+    .suggested-filters {
+        border-top: 0.1em solid $page-background-color;
+    }
+
+    .suggested-filter-group {
+        margin: 0.5em 0.25em;
+    }
+
+    .search {
+        margin: 0.5em 0.25em 0 0;
+        color: $page-background-color;
+        cursor: pointer;
+    }
+
+    input {
+        margin: 0.75em 0.25em 0.6em 0;
+        padding: 0;
+        border: none;
+        flex-grow: 1;
+        height: 1em;
+        outline: none;
+        background-color: $input-background-color;
+        color: $input-text-color;
+
+        &::placeholder {
+            opacity: $input-placeholder-opacity;
+            color: $input-placeholder-color;
+        }
+    }
+}
+
+.toggle-suggested-filters {
+    display: block;
+    margin: 0.5em;
+}
+</style>
diff --git a/frontend/src/components/page/PageFooter.vue b/frontend/src/components/page/PageFooter.vue
index fbe359f..86ab4ac 100644
--- a/frontend/src/components/page/PageFooter.vue
+++ b/frontend/src/components/page/PageFooter.vue
@@ -4,13 +4,6 @@ import {useVersionStore} from "@/stores/version";
 
 const config = useConfigStore();
 const version = useVersionStore();
-
-function refresh(): void {
-    config.refresh();
-    version.refresh();
-}
-
-refresh();
 </script>
 
 <template>
diff --git a/frontend/src/components/page/PageHeader.vue b/frontend/src/components/page/PageHeader.vue
index e9a8aa2..9581d27 100644
--- a/frontend/src/components/page/PageHeader.vue
+++ b/frontend/src/components/page/PageHeader.vue
@@ -2,12 +2,6 @@
 import { useConfigStore } from "@/stores/config";
 
 const config = useConfigStore();
-
-function refresh(): void {
-    config.refresh();
-}
-
-refresh();
 </script>
 
 <template>
diff --git a/frontend/src/main.ts b/frontend/src/main.ts
index 786af44..c4d3982 100644
--- a/frontend/src/main.ts
+++ b/frontend/src/main.ts
@@ -3,10 +3,15 @@ import { createPinia } from "pinia";
 
 import App from "./App.vue";
 import router from "./router";
+import {useConfigStore} from "@/stores/config";
+import {useVersionStore} from "@/stores/version";
 
 const app = createApp(App);
 
 app.use(createPinia());
 app.use(router);
 
+useConfigStore().refresh().catch(err => console.error(err));
+useVersionStore().refresh().catch(err => console.error(err));
+
 app.mount("#app");
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index 8ce86c1..5d4520a 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -21,9 +21,25 @@ const router = createRouter({
             path: "/admin/nodes",
             name: "admin-nodes",
             component: AdminNodesView,
-            props: route => ({
-                filter: isNodesFilter(route.query) ? route.query : {}
-            })
+            props: route => {
+                let filter: any;
+                if (route.query.hasOwnProperty("filter")) {
+                    try {
+                        filter = JSON.parse(route.query.filter as string);
+                    } catch (e) {
+                        console.warn(e);
+                        filter = {};
+                    }
+                } else {
+                    filter = {};
+                }
+
+                const searchTerm = route.query.q ? route.query.q as string : undefined;
+                return {
+                    filter: isNodesFilter(filter) ? filter : {},
+                    searchTerm,
+                }
+            }
         },
     ],
 });
diff --git a/frontend/src/scss/_variables.scss b/frontend/src/scss/_variables.scss
index b1eecfb..42362d4 100644
--- a/frontend/src/scss/_variables.scss
+++ b/frontend/src/scss/_variables.scss
@@ -1,8 +1,8 @@
 // Grays
 $black: #000000;
-$gray-darkest: #222222;
-$gray-darker: #333333;
-$gray-dark: #444444;
+$gray-darkest: #1c1c1c;
+$gray-darker: #2c2c2c;
+$gray-dark: #333333;
 $gray: #666666;
 $gray-light: #d6d6d6;
 $gray-lighter: #ededed;
@@ -14,7 +14,7 @@ $variant-colors: (
     success: #4ba74b,
     warning: #fdbc41,
     danger: #ef5652,
-    info: #009ee0,
+    info: #0097c4,
 );
 $variant-text-colors: (
     // primary: do not use, contrast too low
@@ -37,9 +37,24 @@ $page-padding: 0.5em 0.5em 4.5em 0.5em;
 
 // Links
 $link-color: $variant-color-warning;
+$link-hover-color: $variant-color-warning;
+
+// Inputs
+$input-background-color: $gray-lighter;
+$input-text-color: $gray-darkest;
+$input-placeholder-color: $gray-darkest;
+$input-placeholder-opacity: 0.8;
+$input-border: 0.1em solid $page-background-color;
+$input-border-radius: 0.5em;
+$input-focus-outline: 0.1em solid $variant-color-info;
+
+$button-padding: 0.25em 0.5em;
+$button-border-radius: $input-border-radius;
+$button-border-width: 0.1em;
+$button-border-style: solid;
 
 // Navigation
-$nav-bar-background-color: $gray-darker;
+$nav-bar-background-color: $gray-dark;
 $nav-link-color: $page-text-color;
 $nav-link-spacing: 1.5em;
 
@@ -57,3 +72,9 @@ $statistics-card-border-radius: 0.5em;
 $statistics-card-icon-size: 4em;
 $statistics-card-icon-gap: 0.15em;
 $statistics-card-value-font-size: 2.5em;
+
+// Nodes filter panel
+$nodes-filter-panel-pill-variant: success;
+$nodes-filter-panel-pill-text-color: map-get($variant-text-colors, $nodes-filter-panel-pill-variant);
+$nodes-filter-panel-pill-background-color: map-get($variant-colors, $nodes-filter-panel-pill-variant);
+$nodes-filter-panel-pill-font-weight: bold;
diff --git a/frontend/src/stores/nodes.ts b/frontend/src/stores/nodes.ts
index ef3ec75..a7e98f8 100644
--- a/frontend/src/stores/nodes.ts
+++ b/frontend/src/stores/nodes.ts
@@ -37,13 +37,19 @@ export const useNodesStore = defineStore({
         },
     },
     actions: {
-        async refresh(page: number, nodesPerPage: number, filter: NodesFilter): Promise<void> {
+        async refresh(page: number, nodesPerPage: number, filter: NodesFilter, searchTerm?: string): Promise<void> {
+            const query: Record<string, any> = {
+                ...filter,
+            };
+            if (searchTerm) {
+                query.q = searchTerm;
+            }
             const result = await internalApi.getPagedList<EnhancedNode>(
                 "nodes",
                 isEnhancedNode,
                 page,
                 nodesPerPage,
-                filter,
+                query,
             );
             this.nodes = result.entries;
             this.totalNodes = result.total;
diff --git a/frontend/src/stores/version.ts b/frontend/src/stores/version.ts
index 6ff5674..d7b5540 100644
--- a/frontend/src/stores/version.ts
+++ b/frontend/src/stores/version.ts
@@ -1,6 +1,6 @@
-import { defineStore } from "pinia";
-import { isObject, isVersion, type Version } from "@/types";
-import { api } from "@/utils/Api";
+import {defineStore} from "pinia";
+import {isObject, isVersion, type Version} from "@/types";
+import {api} from "@/utils/Api";
 
 interface VersionResponse {
     version: Version;
diff --git a/frontend/src/views/AdminNodesView.vue b/frontend/src/views/AdminNodesView.vue
index 9162071..9eaa952 100644
--- a/frontend/src/views/AdminNodesView.vue
+++ b/frontend/src/views/AdminNodesView.vue
@@ -1,17 +1,22 @@
 <script setup lang="ts">
 import {useNodesStore} from "@/stores/nodes";
-import {onMounted, ref} from "vue";
+import {onMounted, ref, watch} from "vue";
 import type {EnhancedNode, MAC, NodesFilter} from "@/types";
 import Pager from "@/components/Pager.vue";
 import LoadingContainer from "@/components/LoadingContainer.vue";
+import NodesFilterPanel from "@/components/nodes/NodesFilterPanel.vue";
+import router from "@/router";
 
 const NODE_PER_PAGE = 50;
 
 interface Props {
     filter: NodesFilter;
+    searchTerm?: string;
 }
 
 const props = defineProps<Props>();
+const currentFilter = ref<NodesFilter>({});
+const currentSearchTerm = ref<string | undefined>(undefined);
 
 type NodeRedactField = "nickname" | "email" | "token";
 type NodeRedactFieldsMap = Partial<Record<NodeRedactField, boolean>>;
@@ -27,7 +32,7 @@ async function refresh(page: number): Promise<void> {
     loading.value = true;
     redactAllFields(true);
     try {
-        await nodes.refresh(page, NODE_PER_PAGE, props.filter);
+        await nodes.refresh(page, NODE_PER_PAGE, currentFilter.value, currentSearchTerm.value);
     } finally {
         loading.value = false;
     }
@@ -56,25 +61,37 @@ function setRedactField(node: EnhancedNode, field: NodeRedactField, value: boole
     redactFieldsMap[field] = value;
 }
 
-onMounted(async () => await refresh(1));
+async function updateFilter(filter: NodesFilter, searchTerm?: string): Promise<void> {
+    const filterStr = Object.keys(filter).length > 0 ? JSON.stringify(filter) : undefined;
+    await router.push({
+        path: '/admin/nodes',
+        query: {
+            q: searchTerm,
+            filter: filterStr
+        }
+    });
+    currentFilter.value = filter;
+    currentSearchTerm.value = searchTerm;
+    await refresh(1);
+}
+
+async function refreshFromProps(): Promise<void> {
+    const needsRefresh = currentFilter.value !== props.filter || currentSearchTerm.value !== props.searchTerm;
+    currentFilter.value = props.filter;
+    currentSearchTerm.value = props.searchTerm;
+    if (needsRefresh) {
+        await refresh(1);
+    }
+}
+
+onMounted(refreshFromProps);
+watch(props, refreshFromProps);
 </script>
 
 <template>
     <h2>Knoten</h2>
 
-    <div>
-        <span>Gesamt: {{ nodes.getTotalNodes }}</span>
-        <button
-            v-if="redactFieldsByDefault"
-            @click="redactAllFields(false)">
-            Sensible Daten einblenden
-        </button>
-        <button
-            v-if="!redactFieldsByDefault"
-            @click="redactAllFields(true)">
-            Sensible Daten ausblenden
-        </button>
-    </div>
+    <NodesFilterPanel :filter="props.filter" @update-filter="updateFilter"/>
 
     <Pager
         :page="nodes.getPage"
@@ -82,6 +99,21 @@ onMounted(async () => await refresh(1));
         :totalItems="nodes.getTotalNodes"
         @changePage="refresh"/>
 
+    <div class="actions">
+        <button
+            v-if="redactFieldsByDefault"
+            class="warning"
+            @click="redactAllFields(false)">
+            Sensible Daten einblenden
+        </button>
+        <button
+            v-if="!redactFieldsByDefault"
+            class="success"
+            @click="redactAllFields(true)">
+            Sensible Daten ausblenden
+        </button>
+    </div>
+
     <LoadingContainer :loading="loading">
         <table>
             <thead>
@@ -208,9 +240,17 @@ onMounted(async () => await refresh(1));
 <style lang="scss" scoped>
 @import "../scss/variables";
 
+.actions {
+    margin: 0 0 0.5em 0;
+}
+
 table {
     border-collapse: collapse;
 
+    tbody tr:hover {
+        background-color: $gray-darker;
+    }
+
     th, td {
         padding: 0.5em 0.25em;
     }
diff --git a/server/types/shared.ts b/server/types/shared.ts
index 4b61d15..b1676bb 100644
--- a/server/types/shared.ts
+++ b/server/types/shared.ts
@@ -19,6 +19,10 @@ export function isArray<T>(arg: unknown, isT: TypeGuard<T>): arg is Array<T> {
     return true;
 }
 
+export function isMap(arg: unknown): arg is Map<any, any> {
+    return arg instanceof Map;
+}
+
 export function isString(arg: unknown): arg is string {
     return typeof arg === "string"
 }
@@ -333,8 +337,20 @@ export interface NodesFilter {
     hasKey?: boolean;
     hasCoords?: boolean;
     monitoringState?: MonitoringState;
+    site?: Site;
+    domain?: Domain;
+    onlineState?: OnlineState;
 }
 
+export const NODES_FILTER_FIELDS = {
+    hasKey: Boolean,
+    hasCoords: Boolean,
+    monitoringState: MonitoringState,
+    site: String,
+    domain: String,
+    onlineState: OnlineState,
+};
+
 export function isNodesFilter(arg: unknown): arg is NodesFilter {
     if (!isObject(arg)) {
         return false;
@@ -343,6 +359,9 @@ export function isNodesFilter(arg: unknown): arg is NodesFilter {
     return (
         isOptional(filter.hasKey, isBoolean) &&
         isOptional(filter.hasCoords, isBoolean) &&
-        isOptional(filter.monitoringState, isMonitoringState)
+        isOptional(filter.monitoringState, isMonitoringState) &&
+        isOptional(filter.site, isSite) &&
+        isOptional(filter.domain, isDomain) &&
+        isOptional(filter.onlineState, isOnlineState)
     );
 }