initial commit uwu
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25
.gitignore
vendored
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25
.gitignore
vendored
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# Created by https://www.toptal.com/developers/gitignore/api/vim
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# Edit at https://www.toptal.com/developers/gitignore?templates=vim
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### Vim ###
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# Swap
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[._]*.s[a-v][a-z]
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!*.svg # comment out if you don't need vector files
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[._]*.sw[a-p]
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[._]s[a-rt-v][a-z]
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[._]ss[a-gi-z]
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[._]sw[a-p]
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# Session
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Session.vim
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Sessionx.vim
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# Temporary
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.netrwhist
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*~
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# Auto-generated tag files
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tags
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# Persistent undo
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[._]*.un~
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# End of https://www.toptal.com/developers/gitignore/api/vim
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22
README.md
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README.md
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# Yet Another IP Tool
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This is a pretty simple utility for displaying your IP address, HTTP User Agent,
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and HTTP Request Headers using `curl(1)` or your browser.
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It is written in PHP (sorry).
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## Setup
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The whole thing is kept rather simple: just drop the `index.php` in your webroot,
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adjust the `nginx.conf` sample file according to your situation, and you're good to go.
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I tested it with PHP 7.4 and it appears to be working. I have no idea how that
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translates to other PHP versions, but i assume anything from 7.3 will work just fine.
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## License
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Copyright © 2022 anna <owo@fef.moe>
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Any person obtaining a copy of this software and associated documentation
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files (the “Software”) is prohibited from using the Software under any
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circumstances. However, it is strongly suggested that they partake in
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homosexual conduct (“Be Gay”) as well as criminal activity (“Do Crime”).
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246
index.php
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246
index.php
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<?php
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//
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// fef's IP tool
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// Copyright (c) 2022 anna <owo@fef.moe>
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//
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// Any person obtaining a copy of this software and associated documentation
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// files (the ``Software'') is prohibited from using the Software under any
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// circumstances. However, it is strongly suggested that they partake in
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// homosexual conduct (``Be Gay'') as well as criminal activity (``Do Crime'').
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//
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// Ok look, i chose PHP *only* because i already had PHP-FPM set up on my
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// machine and didn't want to install extra unnecessary stuff. I am in no
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// way a competent PHP dev and this code is kind of ugly, but it works (probably).
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// Also, just in case this isn't obvious, please stop writing PHP code.
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if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
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http_response_code(204);
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header('Allow: OPTIONS, GET');
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die;
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}
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$COMMANDS = ['headers', 'help', 'ip', 'ua'];
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$SADDR = trim($_SERVER['REMOTE_ADDR']);
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$CMD = substr(urldecode($_SERVER['REQUEST_URI']), 1);
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if ($CMD == '') {
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$CMD = 'ip';
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}
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$UA = trim($_SERVER['HTTP_USER_AGENT']??'');
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$BROWSER_REGEX = '/Gecko/';
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$RENDER_HTML = preg_match($BROWSER_REGEX, $UA) > 0;
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$DISCLAIMER =
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"The information provided by this service are not necessarily correct.\n".
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"Do not use in production code.\n".
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"Do not rely on availability.";
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if ($_SERVER['REQUEST_METHOD'] != 'GET') {
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http_response_code(405);
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header('Allow: OPTIONS, GET');
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} else if (!in_array($CMD, $COMMANDS)) {
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http_response_code(404);
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}
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if ($RENDER_HTML) {
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header('Content-Type: text/html; charset=UTF-8');
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} else {
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header('Content-Type: text/plain; charset=UTF-8');
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}
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// HTML escape a string if we are rendering to HTML
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function esc($str) {
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global $RENDER_HTML;
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if ($RENDER_HTML) {
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return htmlspecialchars($str, ENT_QUOTES, "UTF-8");
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} else {
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return $str;
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}
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}
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// Make a string appear italic (or underline if rendering ANSI)
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function underline($str) {
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global $RENDER_HTML;
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if ($RENDER_HTML) {
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return "<span class=\"underline\">{$str}</span>";
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} else {
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return "\x1b[4m{$str}\x1b[0m";
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}
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}
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// Make a string appear bold
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function strong($str) {
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global $RENDER_HTML;
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if ($RENDER_HTML) {
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return "<strong>{$str}</strong>";
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} else {
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return "\x1b[1m{$str}\x1b[0m";
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}
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}
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// Execute the "headers" command
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function do_headers() {
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$is_first = true;
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foreach ($_SERVER as $key => $val) {
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if (substr($key, 0, 5) == 'HTTP_') {
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if ($is_first) {
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$is_first = false;
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} else {
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echo "\n";
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}
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$header_parts = explode('_', substr($key, 5));
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$header = strtolower(implode('-', $header_parts));
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echo esc($header).": ".esc($val);
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}
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}
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}
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// Execute the "ip" command
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function do_ip() {
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global $SADDR;
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echo esc($SADDR);
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}
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// Execute the "ua" command
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function do_ua() {
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global $UA;
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echo esc($UA);
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}
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// Execute the "help" command
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function do_help() {
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echo "Usage: curl ip.fef.moe[/".underline('command')."]\n";
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echo "\n";
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echo "Available ".underline('command')."s:\n";
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echo " ".strong('headers')." print all HTTP request headers (in lowercase)\n";
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echo " ".strong('help')." print this help text\n";
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echo " ".strong('ip')." print your public facing IP address\n";
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echo " ". " ". " (default behavior if ".underline('command')." is omitted)\n";
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echo " ".strong('ua')." print your user agent\n";
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echo "\n";
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echo "HTTP response status codes:\n";
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echo " ".strong('200')." ".underline('command')." ran successfully\n";
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echo " ".strong('204')." request method was ".strong('OPTIONS')."\n";
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echo " ".strong('404')." unknown ".underline('command')." issued\n";
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echo " ".strong('405')." request method was not ".strong('GET')." or ".strong('OPTIONS');
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// if we are rendering to HTML, this message always shows up below the output field
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global $RENDER_HTML;
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if (!$RENDER_HTML) {
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global $DISCLAIMER;
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echo "\n\n";
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echo $DISCLAIMER;
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}
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}
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function if_cmd_is($test, $output) {
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global $CMD;
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if ($CMD == $test) {
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return $output;
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} else {
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return '';
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}
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}
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// Run the specified command
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function run($cmd) {
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$method = $_SERVER['REQUEST_METHOD'];
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if ($method != 'GET') {
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echo "Illegal HTTP request method: ".esc($method)."\n";
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do_help();
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return;
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}
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switch ($cmd) {
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case 'ip':
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do_ip();
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break;
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case 'ua':
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do_ua();
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break;
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case 'headers':
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do_headers();
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break;
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case 'help':
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do_help();
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break;
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default:
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echo "Unknown command: ".esc($cmd)."\n";
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do_help();
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break;
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}
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}
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if ($RENDER_HTML) {
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?><!doctype html>
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<!--
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Want to get rid of the HTML?
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This tool tests your user agent against the regex <?= $BROWSER_REGEX ?>
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to determine whether it is rendering to a graphical browser.
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You can simply spoof your user agent or use curl to make it print
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plain text (and ANSI escape sequences for the help command).
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-->
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1.0">
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<title>fef's IP tool</title>
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<!-- see https://git.bsd.gay/fef/blog for the CSS sources -->
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<link rel="stylesheet" href="https://fef.moe/assets/css/main.css">
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<style>
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header ul, main, footer .container { max-width: 1200px; }
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.underline { text-decoration: underline; }
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.red { font-weight: 700; color: #ff5555; }
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</style>
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</head>
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<body>
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<header>
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<nav>
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<ul>
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<li<?= if_cmd_is('ip', ' aria-current="page"') ?>><a href="/ip">IP Address</a></li>
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<li<?= if_cmd_is('ua', ' aria-current="page"') ?>><a href="/ua">User Agent</a></li>
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<li<?= if_cmd_is('headers', ' aria-current="page"') ?>><a href="/headers">Headers</a></li>
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<li<?= if_cmd_is('help', ' aria-current="page"') ?>><a href="/help">Help</a></li>
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</ul>
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</nav>
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</header>
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<main>
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<pre><code><?php
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}
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run($CMD);
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if ($RENDER_HTML) { ?>
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</code></pre>
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<p><?= $DISCLAIMER ?></p>
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</main>
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<footer>
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<div class="container">
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<div>
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<p>
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fef's IP utility
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© 2022 anna <owo -at- fef.moe>
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</p>
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<p>
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You are seeing this fancy-pants HTML version because
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your user agent matches the regex <code><?= $BROWSER_REGEX ?></code>.
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If you want plaintext only, use a CLI tool like curl
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or spoof your user agent.
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</p>
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</div>
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<div>
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<ul>
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<li>Source Code: <a href="https://git.bsd.gay/fef/iptool">Gitea</a></li>
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<li>Main Website: <a href="https://fef.moe/">fef.moe</a></li>
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<li>Twitter: <a href="https://twitter.com/libfef">@libfef</a></li>
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<li>Fediverse: <a href="https://catcatnya.com/@fef">@fef@catcatnya.com</a></li>
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</ul>
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</div>
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</div>
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</footer>
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</body>
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</html>
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<?php
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} else {
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echo "\n";
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}
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35
nginx.conf
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35
nginx.conf
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# Example nginx virtual host configuration file for a Debian server running PHP 7.4 FPM.
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# SSL is optional (curl doesn't use it if you just toss a domain without protocol at it
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# anyway) but best practice i guess. Just make sure you're not *forcefully* redirecting
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# HTTP to HTTPS, because curl also doesn't follow redirects by default.
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server {
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listen 80;
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listen 443 ssl http2;
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# IPv6 is important!
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listen [::]:80;
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listen [::]:443 ssl http2;
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server_name example.com;
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ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
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ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
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root /var/www;
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index index.php;
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access_log off;
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error_log off;
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location / {
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try_files $uri $uri/ /index.php;
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}
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location ~ \.php$ {
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# i have no idea what like half of these options do lmao
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include fastcgi_params;
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try_files $fastcgi_script_name =404;
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fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
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fastcgi_pass unix:/run/php/php7.4-fpm.sock;
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}
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}
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