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Rework secure_login_only configuration option to allow secure default and header checking

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This commit is contained in:
Zankaria 2024-05-11 16:02:15 +02:00
parent 519dd27221
commit d700aa0522
4 changed files with 18 additions and 14 deletions
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9
inc/config.php
View File

@ -194,8 +194,13 @@
// Whether or not you can access the mod cookie in JavaScript. Most users should not need to change this.
$config['cookies']['httponly'] = true;
// Do not allow logins via unencrypted HTTP. If your website uses HTTPS, turn this on.
$config['cookies']['secure_login_only'] = false;
// Do not allow logins via unsecure connections.
// 0 = off. Allow logins on unencrypted HTTP connections. Should only be used in testing environments.
// 1 = on, trust HTTP headers. Allow logins on (at least reportedly partial) HTTPS connections. Use this only if you
// use a proxy, CDN or load balancer via an unencrypted connection. Be sure to filter 'HTTP_X_FORWARDED_PROTO' in
// the remote server, since an attacker could inject the header from the client.
// 2 = on, do not trust HTTP headers. Secure default, allow logins only on HTTPS connections.
$config['cookies']['secure_login_only'] = 2;
// Used to salt secure tripcodes ("##trip") and poster IDs (if enabled).
$config['secure_trip_salt'] = ')(*&^%$#@!98765432190zyxwvutsrqponmlkjihgfedcba';

16
inc/functions/net.php
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@ -3,16 +3,14 @@ namespace Vichan\Functions\Net;
/**
* @param bool $trust_headers. If true, trust the `HTTP_X_FORWARDED_PROTO` header to check if the connection is HTTPS.
* @return bool Returns if the client-server connection is an encrypted one (HTTPS).
*/
function is_connection_secure(): bool {
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') {
return true;
}
elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') {
return true;
}
else {
function is_connection_secure(bool $trust_headers): bool {
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') {
return true;
} elseif ($trust_headers && isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') {
return true;
}
return false;
}
}

4
inc/mod/auth.php
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@ -118,7 +118,7 @@ function setCookies(): void {
error('setCookies() was called for a non-moderator!');
}
$is_https = Net\is_connection_secure();
$is_https = Net\is_connection_secure($config['cookies']['secure_login_only'] === 1);
$is_path_jailed = $config['cookies']['jail'];
$name = calc_cookie_name($is_https, $is_path_jailed, $config['cookies']['mod']);
@ -235,7 +235,7 @@ function make_secure_link_token(string $uri): string {
function check_login(bool $prompt = false): void {
global $config, $mod;
$is_https = Net\is_connection_secure();
$is_https = Net\is_connection_secure($config['cookies']['secure_login_only'] === 1);
$is_path_jailed = $config['cookies']['jail'];
$expected_cookie_name = calc_cookie_name($is_https, $is_path_jailed, $config['cookies']['mod']);

3
inc/mod/pages.php
View File

@ -35,7 +35,8 @@ function mod_login($redirect = false) {
$args = [];
if ($config['cookies']['secure_login_only'] && !Net\is_connection_secure()) {
$secure_login_mode = $config['cookies']['secure_login_only'];
if ($secure_login_mode !== 0 && !Net\is_connection_secure($secure_login_mode === 1)) {
$args['error'] = $config['error']['insecure'];
} elseif (isset($_POST['login'])) {
// Check if inputs are set and not empty