initial commit

This commit is contained in:
Guanran Wang 2024-08-27 06:01:24 +08:00
commit 1c0ace8ca3
Signed by: nyancat
GPG key ID: 91F97D9ED12639CF
11 changed files with 435 additions and 0 deletions

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.gitignore vendored Normal file
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result
result-*
.DS_Store

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LICENSE Normal file
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MIT License
Copyright (c) 2024 Guanran Wang
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next paragraph) shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Ny4 IP Checker" />
<title>What is my IP?</title>
<link href="static/style.css" rel="stylesheet" />
<script src="static/script.js" defer></script>
</head>
<body>
<div class="center">
<p>Ny4 IP checker!</p>
<!-- FIXME: this is completely not responsive -->
<table>
<thead>
<tr>
<th>source</th>
<th>ip</th>
<th>location</th>
</tr>
</thead>
<tbody>
<tr>
<th>local</th>
<th>{{.sourceIP}}</th>
<th>N/A</th>
</tr>
<tr>
<th>ip.sb</th>
<th id="check-ipsb-ip">Loading...</th>
<th id="check-ipsb-location">Loading...</th>
</tr>
<tr>
<th>ipapi.is</th>
<th id="check-ipapiis-ip">Loading...</th>
<th id="check-ipapiis-location">Loading...</th>
</tr>
<tr>
<th>ip-api.com</th>
<th id="check-speedtestcn-ip">Loading...</th>
<th id="check-speedtestcn-location">Loading...</th>
</tr>
</tbody>
</table>
</div>
<footer>
(c) 2024 Guanran Wang, source code licenced under MIT.
<a href="https://git.ny4.dev/nyancat/ip-checker">Git Repo</a>
</footer>
</body>
</html>

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function main() {
fetchAsync("https://api.ip.sb/geoip").then(
function (value) {
v = value;
document.getElementById("check-ipsb-ip").innerHTML = v.ip;
document.getElementById("check-ipsb-location").innerHTML = [
v.city,
v.country,
v.isp,
].join(", ");
},
function (error) {
console.log(error);
},
);
fetchAsync("https://api-v3.speedtest.cn/ip").then(
function (value) {
v = value.data;
document.getElementById("check-speedtestcn-ip").innerHTML = v.ip;
document.getElementById("check-speedtestcn-location").innerHTML = [
v.city,
v.country,
v.isp,
].join(", ");
},
function (error) {
console.log(error);
},
);
fetchAsync("https://api.ipapi.is/").then(
function (value) {
v = value;
document.getElementById("check-ipapiis-ip").innerHTML = v.ip;
document.getElementById("check-ipapiis-location").innerHTML = [
v.location.city,
v.location.country,
v.company.name,
].join(", ");
},
function (error) {
console.log(error);
},
);
}
async function fetchAsync(url) {
let response = await fetch(url);
let data = await response.json();
return data;
}
window.onload = function () {
main();
};

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@import url("https://fonts.googleapis.com/css2?family=Fira+Code:wght@500&display=swap");
/* https://tailwindcss.com/docs/customizing-colors#default-color-palette */
:root {
--bg: #ede9fe;
--text: #2e1065;
--text-footer: #64748b;
--table: #c4b5fd;
}
@media (prefers-color-scheme: dark) {
:root {
--text: #f1f5f9;
--bg: #0f172a;
--text-footer: #64748b;
--table: #334155;
}
a:link {
color: #3b82f6;
}
a:visited {
color: #8b5cf6;
}
}
body {
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 16px;
font-style: normal;
font-weight: 500;
background-color: var(--bg);
color: var(--text);
}
table {
width: 100%;
border-collapse: collapse;
}
th {
border: 2px var(--table) solid;
padding: 5px 20px;
}
footer {
color: var(--text-footer);
font-size: 14px;
position: absolute;
bottom: 0;
left: 50%;
transform: translate(-50%, -10px);
}
.center {
margin: 0;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}

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{
"nodes": {
"flake-utils": {
"inputs": {
"systems": [
"systems"
]
},
"locked": {
"lastModified": 1710146030,
"narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1724395761,
"narHash": "sha256-zRkDV/nbrnp3Y8oCADf5ETl1sDrdmAW6/bBVJ8EbIdQ=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "ae815cee91b417be55d43781eb4b73ae1ecc396c",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixpkgs-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs",
"systems": "systems",
"treefmt-nix": "treefmt-nix"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
},
"treefmt-nix": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1724338379,
"narHash": "sha256-kKJtaiU5Ou+e/0Qs7SICXF22DLx4V/WhG1P6+k4yeOE=",
"owner": "numtide",
"repo": "treefmt-nix",
"rev": "070f834771efa715f3e74cd8ab93ecc96fabc951",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "treefmt-nix",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
flake-utils = {
url = "github:numtide/flake-utils";
inputs.systems.follows = "systems";
};
treefmt-nix = {
url = "github:numtide/treefmt-nix";
inputs.nixpkgs.follows = "nixpkgs";
};
### De-dupe flake dependencies
systems.url = "github:nix-systems/default";
};
outputs =
inputs:
inputs.flake-utils.lib.eachDefaultSystem (
system:
let
pkgs = inputs.nixpkgs.legacyPackages.${system};
treefmtEval = inputs.treefmt-nix.lib.evalModule pkgs ./treefmt.nix;
in
{
### nix {run,shell,build}
packages.default = pkgs.callPackage ./package.nix { };
### nix fmt
formatter = treefmtEval.config.build.wrapper;
### nix flake check
checks.formatting = treefmtEval.config.build.check inputs.self;
### nix develop
devShells.default = pkgs.mkShell {
nativeBuildInputs = with pkgs; [
go
nodePackages.prettier
];
};
}
);
}

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module ip-checker
go 1.22.5

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package main
import (
"fmt"
"html/template"
"log"
"net/http"
"os"
"strings"
)
type ServerConfig struct {
listen string
}
func main() {
config := ServerConfig{
listen: getEnvOr("IP_CHECKER_LISTEN", ":8080"),
}
tmpl := template.Must(template.ParseFiles("assets/index.html"))
http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./assets/static"))))
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
handleRequest(w, r, tmpl)
})
log.Printf("Starting server on %s", config.listen)
log.Fatal(http.ListenAndServe(config.listen, nil))
}
func handleRequest(w http.ResponseWriter, r *http.Request, tmpl *template.Template) {
sourceIP := strings.Split(r.RemoteAddr, ":")[0]
isHeadless := strings.HasPrefix(r.Header.Get("User-Agent"), "curl/")
log.Printf("r.URL.Path: %s, sourceIP: %s, isHeadless: %t, User-Agent: %s", r.URL.Path, sourceIP, isHeadless, r.Header.Get("User-Agent"))
// TODO: /favicon.ico
switch r.URL.Path {
case "/":
if isHeadless {
fmt.Fprintf(w, "%s\n", sourceIP)
} else {
csp := []string{
"default-src 'none'",
"img-src 'self'",
"script-src-elem 'self'",
"style-src-elem 'self' fonts.googleapis.com",
"font-src fonts.gstatic.com",
"connect-src api.ip.sb api-v3.speedtest.cn api.ipapi.is",
}
w.Header().Set("Content-Security-Policy", strings.Join(csp, "; "))
data := map[string]string{
"sourceIP": sourceIP,
}
err := tmpl.Execute(w, data)
if err != nil {
http.Error(w, "Unable to load template", http.StatusInternalServerError)
log.Printf("Template execution error: %v", err)
return
}
}
case "/robots.txt":
fmt.Fprintf(w, `User-Agent: *
Disallow: /harming/humans
Disallow: /ignoring/human/orders
Disallow: /harm/to/self
`)
default:
log.Printf("sourceIP: %s, isHeadless: %t", sourceIP, isHeadless)
http.NotFound(w, r)
return
}
}
func getEnvOr(key, defaultValue string) string {
if value, exists := os.LookupEnv(key); exists {
return value
}
return defaultValue
}

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{ lib, buildGoModule }:
buildGoModule {
pname = "ip-checker";
version = "dev";
src = ./.;
vendorHash = null;
meta = {
homepage = "https://git.ny4.dev/nyancat/ip-checker";
license = lib.licenses.mit;
};
}

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{
projectRootFile = "flake.nix";
### nix
programs.deadnix.enable = true;
programs.statix.enable = true;
programs.nixfmt.enable = true;
### go
programs.gofmt.enable = true;
### misc
programs.prettier.enable = true;
}