Spaces:
Running
Running
File size: 4,004 Bytes
6e29063 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 |
import { basename } from "node:path";
import debug from "debug";
import { convert as convertHtmlToPlainText } from "html-to-text";
import { strip as stripEmojis } from "node-emoji";
import { type SearxngSearchResult, SearxngService } from "searxng";
const fileName = basename(import.meta.url);
const printMessage = debug(fileName);
printMessage.enabled = true;
const SERVICE_HOST = "127.0.0.1";
const SERVICE_PORT = 8888;
const searxng = new SearxngService({
baseURL: `http://${SERVICE_HOST}:${SERVICE_PORT}`,
defaultSearchParams: {
lang: "auto",
safesearch: 1,
format: "json",
},
});
getWebSearchStatus().then((isReady) => {
if (isReady) {
printMessage("Service ready!");
} else {
printMessage("Service not available!");
}
});
export async function getWebSearchStatus() {
try {
const response = await fetch(
`http://${SERVICE_HOST}:${SERVICE_PORT}/healthz`,
);
const responseText = await response.text();
return responseText.trim() === "OK";
} catch {
return false;
}
}
export async function fetchSearXNG(
query: string,
searchType: "text" | "images",
limit = 30,
) {
try {
if (searchType === "text") {
const { results } = await searxng.search(query, {
categories: ["general"],
});
const deduplicatedResults = deduplicateResults(results);
const textualResults = await Promise.all(
deduplicatedResults.slice(0, limit).map(processTextualResult),
);
return filterNullResults(textualResults);
}
const { results } = await searxng.search(query, {
categories: ["images", "videos"],
});
const deduplicatedResults = deduplicateResults(results);
const graphicalResults = await Promise.all(
deduplicatedResults.slice(0, limit).map(processGraphicalResult),
);
return filterNullResults(graphicalResults);
} catch (error) {
console.error(
"Error fetching search results:",
error instanceof Error ? error.message : error,
);
return [];
}
}
async function processGraphicalResult(result: SearxngSearchResult) {
const thumbnailSource =
result.category === "videos" ? result.thumbnail : result.thumbnail_src;
const sourceUrl =
result.category === "videos"
? result.iframe_src || result.url
: result.img_src;
try {
return [result.title, result.url, thumbnailSource, sourceUrl] as [
title: string,
url: string,
thumbnailSource: string,
sourceUrl: string,
];
} catch (error) {
console.warn(
`Failed to process ${result.category} result: ${result.url}`,
error instanceof Error ? error.message : error,
);
return null;
}
}
function processSnippet(snippet: string): string {
const processedSnippet = stripEmojis(
convertHtmlToPlainText(snippet, { wordwrap: false }).trim(),
{ preserveSpaces: true },
);
if (processedSnippet.startsWith("[data:image")) return "";
return processedSnippet;
}
async function processTextualResult(result: SearxngSearchResult) {
try {
if (!result.content) return null;
const title = convertHtmlToPlainText(result.title, {
wordwrap: false,
}).trim();
const snippet = processSnippet(result.content);
if (!title || !snippet) return null;
return [title, snippet, result.url] as [
title: string,
content: string,
url: string,
];
} catch (error) {
console.warn(
`Failed to process textual result: ${result.url}`,
error instanceof Error ? error.message : error,
);
return null;
}
}
function deduplicateResults(
results: SearxngSearchResult[],
): SearxngSearchResult[] {
const urls = new Set<string>();
return results.filter((result) => {
if (urls.has(result.url)) return false;
urls.add(result.url);
return true;
});
}
function filterNullResults<T>(results: (T | null)[]): T[] {
return results.filter(
(result): result is NonNullable<typeof result> => result !== null,
);
}
|