Add searxng for search endpoint (#1193)

* add searxng.ts

* update to add searxng endpoint

* Apply suggestions from code review

* feat(ci/self-host): add tests with searxng

* feat(ci/self-host): bootstrap searxng for testing

* feat(ci): improvements in syntax

---------

Co-authored-by: Gergő Móricz <mo.geryy@gmail.com>

.github/workflows/test-server-self-host.yml

@@ -21,9 +21,9 @@ jobs:
     name: Run tests
     strategy:
       matrix:
-        openai: [true, false]
-        serper: [true, false]
-        playwright: [true, false]
+        ai: ["openai", "no-ai"]
+        search: ["searxng", "google"]
+        engine: ["playwright", "fetch"]
       fail-fast: false
     runs-on: ubuntu-latest
     services:
@@ -32,9 +32,9 @@ jobs:
         ports:
           - 6379:6379
     env:
-      OPENAI_API_KEY: ${{ matrix.openai == true && secrets.OPENAI_API_KEY || '' }}
-      SERPER_API_KEY: ${{ matrix.serper == true && secrets.SERPER_API_KEY || '' }}
-      PLAYWRIGHT_MICROSERVICE_URL: ${{ matrix.playwright == true && 'http://localhost:3003/scrape' || '' }}
+      OPENAI_API_KEY: ${{ matrix.ai == 'openai' && secrets.OPENAI_API_KEY || '' }}
+      SEARXNG_ENDPOINT: ${{ matrix.search == 'searxng' && 'http://localhost:3434' || '' }}
+      PLAYWRIGHT_MICROSERVICE_URL: ${{ matrix.engine == 'playwright' && 'http://localhost:3003/scrape' || '' }}
     steps:
       - uses: actions/checkout@v3
       - name: Install pnpm
@@ -51,7 +51,7 @@ jobs:
         run: pnpm install
         working-directory: ./apps/api
       - name: Install Playwright dependencies
-        if: matrix.playwright == true
+        if: matrix.engine == 'playwright'
         run: |
           pnpm install
           pnpm exec playwright install-deps
@@ -68,6 +68,20 @@ jobs:
           go build -o html-to-markdown.so -buildmode=c-shared html-to-markdown.go
           chmod +x html-to-markdown.so
         working-directory: ./apps/api/sharedLibs/go-html-to-md
+      - name: Set up SearXNG
+        if: matrix.search == 'searxng'
+        run: |
+          mkdir searxng
+
+          echo "use_default_settings: true
+          search:
+            formats: [html, json, csv]
+          server:
+            secret_key: 'fcsecret'" > searxng/settings.yml
+          
+          docker run -d -p 3434:8080 -v "${PWD}/searxng:/etc/searxng" --name searxng searxng/searxng
+          pnpx wait-on tcp:3434 -t 30s
+        working-directory: ./
       - name: Start server
         run: npm start > api.log 2>&1 &
         working-directory: ./apps/api
@@ -75,7 +89,7 @@ jobs:
         run: npm run workers > worker.log 2>&1 &
         working-directory: ./apps/api
       - name: Start playwright
-        if: matrix.playwright == true
+        if: matrix.engine == 'playwright'
         run: npm run dev > playwright.log 2>&1 &
         working-directory: ./apps/playwright-service-ts
         env:
@@ -83,7 +97,7 @@ jobs:
       - name: Wait for server
         run: pnpx wait-on tcp:3002 -t 15s
       - name: Wait for playwright
-        if: matrix.playwright == true
+        if: matrix.engine == 'playwright'
         run: pnpx wait-on tcp:3003 -t 15s
       - name: Run snippet tests
         run: |
@@ -92,16 +106,29 @@ jobs:
       - name: Kill instances
         if: always()
         run: pkill -9 node
+      - name: Kill SearXNG
+        if: always() && matrix.search == 'searxng'
+        run: |
+          docker logs searxng > searxng/searxng.log 2>&1
+          docker kill searxng
+        working-directory: ./
       - uses: actions/upload-artifact@v4
         if: always()
         with:
-          name: Logs (openai ${{ matrix.openai }}, serper ${{ matrix.serper }}, playwright ${{ matrix.playwright }})
+          name: Logs (${{ matrix.ai }}, ${{ matrix.search }}, ${{ matrix.engine }})
           path: |
             ./apps/api/api.log
             ./apps/api/worker.log
       - uses: actions/upload-artifact@v4
         if: always() && matrix.playwright
         with:
-          name: Playwright Logs (openai ${{ matrix.openai }}, serper ${{ matrix.serper }})
+          name: Playwright Logs (${{ matrix.ai }}, ${{ matrix.search }})
           path: |
             ./apps/playwright-service-ts/playwright.log
+      - uses: actions/upload-artifact@v4
+        if: always() && matrix.search == 'searxng'
+        with:
+          name: SearXNG (${{ matrix.ai }}, ${{ matrix.engine }})
+          path: |
+            ./searxng/searxng.log
+            ./searxng/settings.yml

apps/api/src/search/index.ts

@@ -4,6 +4,7 @@ import { googleSearch } from "./googlesearch";
 import { fireEngineMap } from "./fireEngine";
 import { searchapi_search } from "./searchapi";
 import { serper_search } from "./serper";
+import { searxng_search } from "./searxng";
 
 export async function search({
   query,
@@ -51,6 +52,16 @@ export async function search({
         location,
       });
     }
+    if (process.env.SEARXNG_ENDPOINT) {
+      return await searxng_search(query, {
+        num_results,
+        tbs,
+        filter,
+        lang,
+        country,
+        location,
+      });
+    }
     return await googleSearch(
       query,
       advanced,

apps/api/src/search/searxng.ts

@@ -0,0 +1,64 @@
+import axios from "axios";
+import dotenv from "dotenv";
+import { SearchResult } from "../../src/lib/entities";
+import { logger } from "../lib/logger"
+
+dotenv.config();
+
+interface SearchOptions {
+  tbs?: string;
+  filter?: string;
+  lang?: string;
+  country?: string;
+  location?: string;
+  num_results: number;
+  page?: number;
+}
+
+export async function searxng_search(
+  q: string,
+  options: SearchOptions,
+): Promise<SearchResult[]> {
+  const params = {
+    q: q,
+    language: options.lang,
+    // gl: options.country, //not possible with SearXNG
+    // location: options.location, //not possible with SearXNG
+    // num: options.num_results, //not possible with SearXNG
+    engines: process.env.SEARXNG_ENGINES || "",
+    categories: process.env.SEARXNG_CATEGORIES || "general",
+    pageno: options.page ?? 1,
+    format: "json"
+  };
+
+  const url = process.env.SEARXNG_ENDPOINT!;
+  // Remove trailing slash if it exists
+  const cleanedUrl = url.endsWith('/') ? url.slice(0, -1) : url;
+
+  // Concatenate "/search" to the cleaned URL
+  const finalUrl = cleanedUrl + "/search";
+
+  try {
+    const response = await axios.get(finalUrl, {
+      headers: {
+        "Content-Type": "application/json",
+      },
+      params: params,
+    });
+
+    const data = response.data;
+
+    if (data && Array.isArray(data.results)) {
+      return data.results.map((a: any) => ({
+        url: a.url,
+        title: a.title,
+        description: a.content,
+      }));
+    } else {
+      return [];
+    }
+  } catch (error) {
+    logger.error(`There was an error searching for content`, { error });
+    return [];
+  }
+}