feat: AdGuard Home integration (#929)

* feat: AdGuard Home integration

* fix: code improvments

* fix: a better errorMessages method

packages/api/src/router/widgets/dns-hole.ts

@@ -1,6 +1,6 @@
 import { TRPCError } from "@trpc/server";
 
-import { PiHoleIntegration } from "@homarr/integrations";
+import { AdGuardHomeIntegration, PiHoleIntegration } from "@homarr/integrations";
 import type { DnsHoleSummary } from "@homarr/integrations/types";
 import { logger } from "@homarr/log";
 import { createCacheChannel } from "@homarr/redis";
@@ -22,14 +22,9 @@ export const dnsHoleRouter = createTRPCRouter({
               case "piHole":
                 client = new PiHoleIntegration(integration);
                 break;
-              // case 'adGuardHome':
-              //   client = new AdGuardHomeIntegration(integration);
-              //   break;
-              default:
-                throw new TRPCError({
-                  code: "INTERNAL_SERVER_ERROR",
-                  message: `Unsupported integration type: ${integration.kind}`,
-                });
+              case "adGuardHome":
+                client = new AdGuardHomeIntegration(integration);
+                break;
             }
 
             return await client.getSummaryAsync().catch((err) => {
@@ -59,14 +54,9 @@ export const dnsHoleRouter = createTRPCRouter({
         case "piHole":
           client = new PiHoleIntegration(ctx.integration);
           break;
-        // case 'adGuardHome':
-        //   client = new AdGuardHomeIntegration(ctx.integration);
-        //   break;
-        default:
-          throw new TRPCError({
-            code: "INTERNAL_SERVER_ERROR",
-            message: `Unsupported integration type: ${ctx.integration.kind}`,
-          });
+        case "adGuardHome":
+          client = new AdGuardHomeIntegration(ctx.integration);
+          break;
       }
       await client.enableAsync();
     }),
@@ -80,14 +70,9 @@ export const dnsHoleRouter = createTRPCRouter({
         case "piHole":
           client = new PiHoleIntegration(ctx.integration);
           break;
-        // case 'adGuardHome':
-        //   client = new AdGuardHomeIntegration(ctx.integration);
-        //   break;
-        default:
-          throw new TRPCError({
-            code: "INTERNAL_SERVER_ERROR",
-            message: `Unsupported integration type: ${ctx.integration.kind}`,
-          });
+        case "adGuardHome":
+          client = new AdGuardHomeIntegration(ctx.integration);
+          break;
       }
       await client.disableAsync(input.duration);
     }),

packages/integrations/src/adguard-home/adguard-home-integration.ts

@@ -0,0 +1,150 @@
+import { Integration } from "../base/integration";
+import { IntegrationTestConnectionError } from "../base/test-connection-error";
+import type { DnsHoleSummaryIntegration } from "../interfaces/dns-hole-summary/dns-hole-summary-integration";
+import type { DnsHoleSummary } from "../interfaces/dns-hole-summary/dns-hole-summary-types";
+import { filteringStatusSchema, statsResponseSchema, statusResponseSchema } from "./adguard-home-types";
+
+export class AdGuardHomeIntegration extends Integration implements DnsHoleSummaryIntegration {
+  public async getSummaryAsync(): Promise<DnsHoleSummary> {
+    const statsResponse = await fetch(`${this.integration.url}/control/stats`, {
+      headers: {
+        Authorization: `Basic ${this.getAuthorizationHeaderValue()}`,
+      },
+    });
+
+    if (!statsResponse.ok) {
+      throw new Error(
+        `Failed to fetch stats for ${this.integration.name} (${this.integration.id}): ${statsResponse.statusText}`,
+      );
+    }
+
+    const statusResponse = await fetch(`${this.integration.url}/control/status`, {
+      headers: {
+        Authorization: `Basic ${this.getAuthorizationHeaderValue()}`,
+      },
+    });
+
+    if (!statusResponse.ok) {
+      throw new Error(
+        `Failed to fetch status for ${this.integration.name} (${this.integration.id}): ${statusResponse.statusText}`,
+      );
+    }
+
+    const filteringStatusResponse = await fetch(`${this.integration.url}/control/filtering/status`, {
+      headers: {
+        Authorization: `Basic ${this.getAuthorizationHeaderValue()}`,
+      },
+    });
+
+    if (!filteringStatusResponse.ok) {
+      throw new Error(
+        `Failed to fetch filtering status for ${this.integration.name} (${this.integration.id}): ${filteringStatusResponse.statusText}`,
+      );
+    }
+
+    const stats = statsResponseSchema.safeParse(await statsResponse.json());
+    const status = statusResponseSchema.safeParse(await statusResponse.json());
+    const filteringStatus = filteringStatusSchema.safeParse(await filteringStatusResponse.json());
+
+    const errorMessages: string[] = [];
+    if (!stats.success) {
+      errorMessages.push(`Stats parsing error: ${stats.error.message}`);
+    }
+    if (!status.success) {
+      errorMessages.push(`Status parsing error: ${status.error.message}`);
+    }
+    if (!filteringStatus.success) {
+      errorMessages.push(`Filtering status parsing error: ${filteringStatus.error.message}`);
+    }
+    if (!stats.success || !status.success || !filteringStatus.success) {
+      throw new Error(
+        `Failed to parse summary for ${this.integration.name} (${this.integration.id}):\n${errorMessages.join("\n")}`,
+      );
+    }
+
+    const blockedQueriesToday =
+      stats.data.time_units === "days"
+        ? (stats.data.blocked_filtering[stats.data.blocked_filtering.length - 1] ?? 0)
+        : stats.data.blocked_filtering.reduce((prev, sum) => prev + sum, 0);
+    const queriesToday =
+      stats.data.time_units === "days"
+        ? (stats.data.dns_queries[stats.data.dns_queries.length - 1] ?? 0)
+        : stats.data.dns_queries.reduce((prev, sum) => prev + sum, 0);
+    const countFilteredDomains = filteringStatus.data.filters
+      .filter((filter) => filter.enabled)
+      .reduce((sum, filter) => filter.rules_count + sum, 0);
+
+    return {
+      status: status.data.protection_enabled ? ("enabled" as const) : ("disabled" as const),
+      adsBlockedToday: blockedQueriesToday,
+      adsBlockedTodayPercentage: (queriesToday / blockedQueriesToday) * 100,
+      domainsBeingBlocked: countFilteredDomains,
+      dnsQueriesToday: queriesToday,
+    };
+  }
+
+  public async testConnectionAsync(): Promise<void> {
+    await super.handleTestConnectionResponseAsync({
+      queryFunctionAsync: async () => {
+        return await fetch(`${this.integration.url}/control/status`, {
+          headers: {
+            Authorization: `Basic ${this.getAuthorizationHeaderValue()}`,
+          },
+        });
+      },
+      handleResponseAsync: async (response) => {
+        try {
+          const result = (await response.json()) as unknown;
+          if (typeof result === "object" && result !== null) return;
+        } catch (error) {
+          throw new IntegrationTestConnectionError("invalidJson");
+        }
+
+        throw new IntegrationTestConnectionError("invalidCredentials");
+      },
+    });
+  }
+
+  public async enableAsync(): Promise<void> {
+    const response = await fetch(`${this.integration.url}/control/protection`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: `Basic ${this.getAuthorizationHeaderValue()}`,
+      },
+      body: JSON.stringify({
+        enabled: true,
+      }),
+    });
+    if (!response.ok) {
+      throw new Error(
+        `Failed to enable AdGuard Home for ${this.integration.name} (${this.integration.id}): ${response.statusText}`,
+      );
+    }
+  }
+
+  public async disableAsync(duration?: number): Promise<void> {
+    const response = await fetch(`${this.integration.url}/control/protection`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: `Basic ${this.getAuthorizationHeaderValue()}`,
+      },
+      body: JSON.stringify({
+        enabled: false,
+        duration: duration,
+      }),
+    });
+    if (!response.ok) {
+      throw new Error(
+        `Failed to disable AdGuard Home for ${this.integration.name} (${this.integration.id}): ${response.statusText}`,
+      );
+    }
+  }
+
+  private getAuthorizationHeaderValue() {
+    const username = super.getSecretValue("username");
+    const password = super.getSecretValue("password");
+    return Buffer.from(`${username}:${password}`).toString("base64");
+  }
+}

packages/integrations/src/adguard-home/adguard-home-types.ts

@@ -0,0 +1,43 @@
+import { z } from "@homarr/validation";
+
+export const statsResponseSchema = z.object({
+  time_units: z.enum(["hours", "days"]),
+  top_queried_domains: z.array(z.record(z.string(), z.number())),
+  top_clients: z.array(z.record(z.string(), z.number())),
+  top_blocked_domains: z.array(z.record(z.string(), z.number())),
+  dns_queries: z.array(z.number()),
+  blocked_filtering: z.array(z.number()),
+  replaced_safebrowsing: z.array(z.number()),
+  replaced_parental: z.array(z.number()),
+  num_dns_queries: z.number().min(0),
+  num_blocked_filtering: z.number().min(0),
+  num_replaced_safebrowsing: z.number().min(0),
+  num_replaced_safesearch: z.number().min(0),
+  num_replaced_parental: z.number().min(0),
+  avg_processing_time: z.number().min(0),
+});
+
+export const statusResponseSchema = z.object({
+  version: z.string(),
+  language: z.string(),
+  dns_addresses: z.array(z.string()),
+  dns_port: z.number().positive(),
+  http_port: z.number().positive(),
+  protection_disabled_duration: z.number(),
+  protection_enabled: z.boolean(),
+  dhcp_available: z.boolean(),
+  running: z.boolean(),
+});
+
+export const filteringStatusSchema = z.object({
+  filters: z.array(
+    z.object({
+      url: z.string(),
+      name: z.string(),
+      last_updated: z.string().optional(),
+      id: z.number().nonnegative(),
+      rules_count: z.number().nonnegative(),
+      enabled: z.boolean(),
+    }),
+  ),
+});

packages/integrations/src/base/creator.ts

@@ -1,5 +1,6 @@
 import type { IntegrationKind } from "@homarr/definitions";
 
+import { AdGuardHomeIntegration } from "../adguard-home/adguard-home-integration";
 import { HomeAssistantIntegration } from "../homeassistant/homeassistant-integration";
 import { JellyfinIntegration } from "../jellyfin/jellyfin-integration";
 import { SonarrIntegration } from "../media-organizer/sonarr/sonarr-integration";
@@ -10,6 +11,8 @@ export const integrationCreatorByKind = (kind: IntegrationKind, integration: Int
   switch (kind) {
     case "piHole":
       return new PiHoleIntegration(integration);
+    case "adGuardHome":
+      return new AdGuardHomeIntegration(integration);
     case "homeAssistant":
       return new HomeAssistantIntegration(integration);
     case "jellyfin":

packages/integrations/src/index.ts

@@ -1,12 +1,13 @@
 // General integrations
-export { PiHoleIntegration } from "./pi-hole/pi-hole-integration";
+export { AdGuardHomeIntegration } from "./adguard-home/adguard-home-integration";
 export { HomeAssistantIntegration } from "./homeassistant/homeassistant-integration";
 export { JellyfinIntegration } from "./jellyfin/jellyfin-integration";
 export { SonarrIntegration } from "./media-organizer/sonarr/sonarr-integration";
+export { PiHoleIntegration } from "./pi-hole/pi-hole-integration";
 
 // Types
 export type { StreamSession } from "./interfaces/media-server/session";
 
 // Helpers
-export { IntegrationTestConnectionError } from "./base/test-connection-error";
 export { integrationCreatorByKind } from "./base/creator";
+export { IntegrationTestConnectionError } from "./base/test-connection-error";