From 66e1296a06f5061b23908a1164e1d07fffe1f794 Mon Sep 17 00:00:00 2001
From: Torsten Raudssus <github@raudssus.de>
Date: Tue, 11 Jun 2024 17:29:07 +0200
Subject: [PATCH] Searxng Tool implementation (#2599)

* Searxng Tool implementation, first commit with most functionality

* Fixed complains of pnpm lint

* Picky linter
---
 .../nodes/tools/Searxng/SearXNG.svg           |  19 +++
 .../components/nodes/tools/Searxng/Searxng.ts | 119 ++++++++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 packages/components/nodes/tools/Searxng/SearXNG.svg
 create mode 100644 packages/components/nodes/tools/Searxng/Searxng.ts

diff --git a/packages/components/nodes/tools/Searxng/SearXNG.svg b/packages/components/nodes/tools/Searxng/SearXNG.svg
new file mode 100644
index 000000000..915d2783b
--- /dev/null
+++ b/packages/components/nodes/tools/Searxng/SearXNG.svg
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" id="svg8" version="1.1" viewBox="0 0 92 92" height="92mm" width="92mm">
+  <defs id="defs2"/>
+  <metadata id="metadata5">
+    <rdf:RDF>
+      <cc:Work rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+        <dc:title/>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g transform="translate(-40.921303,-17.416526)" id="layer1">
+    <circle r="0" style="fill:none;stroke:#000000;stroke-width:12;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" cy="92" cx="75" id="path3713"/>
+    <circle r="30" cy="53.902557" cx="75.921303" id="path834" style="fill:none;fill-opacity:1;stroke:#3050ff;stroke-width:10;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"/>
+    <path d="m 67.514849,37.91524 a 18,18 0 0 1 21.051475,3.312407 18,18 0 0 1 3.137312,21.078282" id="path852" style="fill:none;fill-opacity:1;stroke:#3050ff;stroke-width:5;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"/>
+    <rect transform="rotate(-46.234709)" ry="1.8669105e-13" y="122.08995" x="3.7063529" height="39.963303" width="18.846331" id="rect912" style="opacity:1;fill:#3050ff;fill-opacity:1;stroke:none;stroke-width:8;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"/>
+  </g>
+</svg>
\ No newline at end of file
diff --git a/packages/components/nodes/tools/Searxng/Searxng.ts b/packages/components/nodes/tools/Searxng/Searxng.ts
new file mode 100644
index 000000000..b3f647371
--- /dev/null
+++ b/packages/components/nodes/tools/Searxng/Searxng.ts
@@ -0,0 +1,119 @@
+import { SearxngSearch } from '@langchain/community/tools/searxng_search'
+import { INode, INodeData, INodeParams } from '../../../src/Interface'
+import { getBaseClasses } from '../../../src/utils'
+
+class Searxng_Tools implements INode {
+    label: string
+    name: string
+    version: number
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'SearXNG'
+        this.name = 'searXNG'
+        this.version = 1.0
+        this.type = 'SearXNG'
+        this.icon = 'SearXNG.svg'
+        this.category = 'Tools'
+        this.description = 'Wrapper around SearXNG - a free internet metasearch engine'
+        this.inputs = [
+            {
+                label: 'Base URL',
+                name: 'apiBase',
+                type: 'string',
+                default: 'http://searxng:8080'
+            },
+            {
+                label: 'Categories',
+                name: 'categories',
+                description:
+                    'Comma separated list, specifies the active search categories. (see <a target="_blank" href="https://docs.searxng.org/user/configured_engines.html#configured-engines">Configured Engines</a>)',
+                optional: true,
+                additionalParams: true,
+                type: 'string'
+            },
+            {
+                label: 'Engines',
+                name: 'engines',
+                description:
+                    'Comma separated list, specifies the active search engines. (see <a target="_blank" href="https://docs.searxng.org/user/configured_engines.html#configured-engines">Configured Engines</a>)',
+                optional: true,
+                additionalParams: true,
+                type: 'string'
+            },
+            {
+                label: 'Language',
+                name: 'language',
+                description: 'Code of the language.',
+                optional: true,
+                additionalParams: true,
+                type: 'string'
+            },
+            {
+                label: 'Page No.',
+                name: 'pageno',
+                description: 'Search page number.',
+                optional: true,
+                additionalParams: true,
+                type: 'number'
+            },
+            {
+                label: 'Time Range',
+                name: 'time_range',
+                description:
+                    'Time range of search for engines which support it. See if an engine supports time range search in the preferences page of an instance.',
+                optional: true,
+                additionalParams: true,
+                type: 'string'
+            },
+            {
+                label: 'Safe Search',
+                name: 'safesearch',
+                description:
+                    'Filter search results of engines which support safe search. See if an engine supports safe search in the preferences page of an instance.',
+                optional: true,
+                additionalParams: true,
+                type: 'number'
+            }
+        ]
+        this.baseClasses = [this.type, ...getBaseClasses(SearxngSearch)]
+    }
+
+    async init(nodeData: INodeData, _: string): Promise<any> {
+        const apiBase = nodeData.inputs?.apiBase as string
+        const categories = nodeData.inputs?.categories as string
+        const engines = nodeData.inputs?.engines as string
+        const language = nodeData.inputs?.language as string
+        const pageno = nodeData.inputs?.pageno as number
+        const time_range = nodeData.inputs?.time_range as string
+        const safesearch = nodeData.inputs?.safesearch as 0 | 1 | 2 | undefined
+        const format = 'json' as 'json'
+
+        const params = {
+            format,
+            categories,
+            engines,
+            language,
+            pageno,
+            time_range,
+            safesearch
+        }
+
+        const headers = {}
+
+        const tool = new SearxngSearch({
+            apiBase,
+            params,
+            headers
+        })
+
+        return tool
+    }
+}
+
+module.exports = { nodeClass: Searxng_Tools }