From 8598577a8afbe13f567b0baa7f9f241863591923 Mon Sep 17 00:00:00 2001 From: Pieter Vander Vennet Date: Mon, 17 Jun 2024 18:22:13 +0200 Subject: [PATCH] Initial commit --- .gitignore | 3 + README.md | 4 + package-lock.json | 382 ++++++++++++++++++++++++++++++++++++++++++++++ package.json | 15 ++ src/main.ts | 181 ++++++++++++++++++++++ 5 files changed, 585 insertions(+) create mode 100644 .gitignore create mode 100644 README.md create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 src/main.ts diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..bb1a887 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +node_modules/* +data/ +.idea/ diff --git a/README.md b/README.md new file mode 100644 index 0000000..039c248 --- /dev/null +++ b/README.md @@ -0,0 +1,4 @@ +Geoip-server +============ + +Simple GEO-IP server diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..1bf8384 --- /dev/null +++ b/package-lock.json 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+ "name": "geoip-server", + "version": "0.0.1", + "description": "Simple Geo-ip server", + "main": "index.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "author": "Pietervdvn", + "license": "GPL-3.0-or-later", + "dependencies": { + "ip2location-nodejs": "^9.6.1", + "ts-node": "^10.9.2" + } +} diff --git a/src/main.ts b/src/main.ts new file mode 100644 index 0000000..2f7e0e2 --- /dev/null +++ b/src/main.ts @@ -0,0 +1,181 @@ +import {IP2Location} from "ip2location-nodejs"; +import http from "node:http" + +export class Server { + constructor( + port: number, + options: { + ignorePathPrefix?: string[] + }, + handle: { + mustMatch: string | RegExp + mimetype: string + addHeaders?: Record + handle: (path: string, queryParams: URLSearchParams, req: http.IncomingMessage) => Promise + }[] + ) { + handle.push({ + mustMatch: "", + mimetype: "text/html", + handle: async () => { + return `Supported endpoints are
    ${handle + .filter((h) => h.mustMatch !== "") + .map((h) => { + let l = h.mustMatch + if (typeof h.mustMatch === "string") { + l = `${l}` + } + return "
  • " + l + "
    • " + }) + .join("")}
` + }, + }) + http.createServer(async (req: http.IncomingMessage, res) => { + try { + const url = new URL(`http://127.0.0.1/` + req.url) + let path = url.pathname + while (path.startsWith("/")) { + path = path.substring(1) + } + console.log( + req.method + " " + req.url, + "from:", + req.headers.origin, + new Date().toISOString(), + path + ) + if (options?.ignorePathPrefix) { + for (const toIgnore of options.ignorePathPrefix) { + if (path.startsWith(toIgnore)) { + path = path.substring(toIgnore.length + 1) + break + } + } + } + const handler = handle.find((h) => { + if (typeof h.mustMatch === "string") { + return h.mustMatch === path + } + if (path.match(h.mustMatch)) { + return true + } + }) + + if (handler === undefined || handler === null) { + res.writeHead(404, {"Content-Type": "text/html"}) + res.write("

Not found...

") + res.end() + return + } + + res.setHeader( + "Access-Control-Allow-Headers", + "Origin, X-Requested-With, Content-Type, Accept" + ) + res.setHeader("Access-Control-Allow-Origin", req.headers.origin ?? "*") + if (req.method === "OPTIONS") { + res.setHeader( + "Access-Control-Allow-Methods", + "POST, GET, OPTIONS, DELETE, UPDATE" + ) + res.writeHead(204, {"Content-Type": handler.mimetype}) + res.end() + return + } + if (req.method === "POST" || req.method === "UPDATE") { + return + } + + if (req.method === "DELETE") { + return + } + + try { + const result = await handler.handle(path, url.searchParams, req) + if (result === undefined) { + res.writeHead(500) + res.write("Could not fetch this website, probably blocked by them") + res.end() + return + } + if (typeof result !== "string") { + console.error( + "Internal server error: handling", + url, + "resulted in a ", + typeof result, + " instead of a string:", + result + ) + } + const extraHeaders = handler.addHeaders ?? {} + res.writeHead(200, {"Content-Type": handler.mimetype, ...extraHeaders}) + res.write("" + result) + res.end() + } catch (e) { + console.error("Could not handle request:", e) + res.writeHead(500) + res.write(e) + res.end() + } + } catch (e) { + console.error("FATAL:", e) + res.end() + } + }).listen(port) + console.log( + "Server is running on port " + port, + ". Supported endpoints are: " + handle.map((h) => h.mustMatch).join(", ") + ) + } +} + +interface IP2LocationResult { + latitude: string; + longitude: string; + region: string; + countryLong: string; + countryShort: string; + ip: string; + ipNo: string; +} + +export class Main { + + private readonly ipv4: IP2Location + private readonly ipv6: IP2Location + + constructor() { + console.log("Loading databases from ./data/") + this.ipv4 = new IP2Location(); + this.ipv4.open("./data/IP2LOCATION-LITE-DB5.BIN"); + console.log("Loaded IPv4 database") + this.ipv6 = new IP2Location(); + this.ipv6.open("./data/IP2LOCATION-LITE-DB5.IPV6.BIN"); + console.log("Loaded IPv6 database") + + const result = this.ipv4.getAll("78.23.104.174"); + console.log("Testresult on fixed IP address:", result) + + new Server(2346, {}, + [{ + mustMatch: "ip", + mimetype: "application/json", + handle: async (path, params, request) => { + return JSON.stringify(this.fetchIp(request)) + } + }]) + } + + private static readonly ipv4Regex = "[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+" + + private fetchIp(request: http.IncomingMessage): IP2LocationResult { + //see : https://github.com/kirsch33/realip/issues/14 + const ipAddress = request.headers['HTTP_X_FORWARDED_FOR'] + const db = ipAddress.match(Main.ipv4Regex) ? this.ipv4 : this.ipv6 + return db.getAll(ipAddress) + } + +} + +new Main()