Gmer4Lfe
c34224effa
Unraid already enforces CSRF on every POST via auto_prepend, but its injector is jQuery-only — the plugin's native fetch() calls carried no token and were being terminated before the endpoint ran, silently, because csrf_terminate exits with an empty body that r.json() swallows.
139 lines
8.0 KiB
PHP
139 lines
8.0 KiB
PHP
<?php
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// ═══════════════════════════════════════════════════════════════════════════════════════════════
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// PURPOSE
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// Auth stack endpoint. The single URL behind the auth tab, covering all three services it
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// manages: Nginx Proxy Manager proxy hosts and certificates, lldap users and groups, and
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// Authelia access rules.
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//
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// OPERATIONAL MODEL
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// Read and write share one URL, split on HTTP method. GET serves the five read actions and
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// is always safe. POST carries an action naming exactly one library call. Anything that is
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// neither GET nor POST is refused with 405 before a parameter is read.
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//
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// Three services, one endpoint, because they are one subject. The auth stack is HOST1's
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// source of truth for identity, and a change in one service usually accompanies a change in
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// another — a new lldap user is only useful once an Authelia rule and an NPM host exist for
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// it. Splitting them into three endpoints would split one page's work across three files
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// with three copies of the same dispatch.
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//
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// DESIGN PRINCIPLES
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// Both dispatches are closed match expressions.
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// Every action maps to one named library call, and an unrecognised action falls to a
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// default arm that returns an error. No part of the request is ever used to construct a
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// function name, so the action list is the complete set of things this endpoint can do.
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//
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// The endpoint holds no auth logic of its own.
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// Token acquisition, API dialects, config parsing and the Authelia container restart
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// all live in include/auth.php. This file is dispatch and nothing else, which is what
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// keeps the credential handling in one auditable place.
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//
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// Structured payloads arrive as JSON in a form field.
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// Proxy definitions and rule sets are nested, so they are passed as encoded JSON rather
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// than flattened into form keys — a rule set does not survive form encoding intact.
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//
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// OPERATIONAL SAFEGUARDS
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// Wrong method is refused with a status code, not just a body, so a mistaken caller fails
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// visibly rather than parsing an error object as data.
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//
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// Every parameter is optional and typed at the call site.
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// (int) casts on ids, ?? '' on strings, ?? '0' === '1' on flags. A malformed POST
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// reaches the library as zeros and empty strings — which the library rejects — rather
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// than raising undefined-index warnings into the JSON body and corrupting the response.
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//
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// Malformed JSON degrades to an empty structure.
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// json_decode with ?: [] on both data and rules. A truncated payload becomes an empty
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// set the library refuses, not a partial one it might act on.
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//
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// Credentials pass through, and are never returned.
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// lldap_set_password and lldap_create_user accept a password and hand it straight to
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// the library. No action in either dispatch returns a stored credential, and nothing
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// here writes one to a log.
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//
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// The destructive actions are POST-only by construction.
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// Delete of a proxy, a user, or a group exists only in the POST match. The GET arm has
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// five read actions and no others, so no link or prefetch can reach a delete.
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//
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// Authelia rule writes are atomic and refuse to create.
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// The library writes .vv.tmp and renames, and returns 'Config not found' rather than
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// authoring a fresh config — a config it created would carry no rules and a default
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// policy, which is an accidental open door.
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//
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// The POST actions are CSRF-guarded by the platform, not by this file.
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// Unraid's auto_prepend (webGui/local_prepend.php) validates a token on every POST and
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// terminates the request before any code here runs. That guard is the reason every
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// mutating action lives in the POST arm — this is the highest-value endpoint in the
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// plugin to reach, since it can create a user and open a proxy host. The five GET
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// actions are reads and are deliberately outside it. See README-unraid.md.
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//
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// REQUEST
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// GET ?action=npm_proxies | npm_certs | lldap_users | lldap_groups | authelia_rules
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// POST action=npm_create data=<JSON>
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// POST action=npm_update id, data=<JSON>
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// POST action=npm_delete id
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// POST action=npm_toggle id, enabled=0|1
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// POST action=lldap_create_user uid, email, display_name, password
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// POST action=lldap_update_user uid, email, display_name
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// POST action=lldap_delete_user uid
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// POST action=lldap_set_password uid, password
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// POST action=lldap_create_group name
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// POST action=lldap_delete_group id
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// POST action=lldap_add_to_group uid, gid
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// POST action=lldap_remove_from_group uid, gid
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// POST action=authelia_save rules=<JSON>, default_policy
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//
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// RESPONSE
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// Whatever the invoked library call returns — ['ok' => bool] with a payload or an error,
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// or an _err key on a failed remote call. npm_certs is wrapped as {"ok":true,"certs":[…]}.
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// {"ok":false,"error":"Unknown action: …"} for anything outside the lists above.
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//
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// DEPENDS ON
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// include/auth.php vv_npm_*(), vv_lldap_*(), vv_authelia_read_rules(),
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// vv_authelia_write_rules()
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// ═══════════════════════════════════════════════════════════════════════════════════════════════
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header('Content-Type: application/json');
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require_once dirname(__DIR__) . '/include/auth.php';
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if ($_SERVER['REQUEST_METHOD'] === 'GET') {
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$action = $_GET['action'] ?? '';
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$result = match ($action) {
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'npm_proxies' => vv_npm_list_proxies(),
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'npm_certs' => ['ok' => true, 'certs' => vv_npm_list_certs()],
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'lldap_users' => vv_lldap_list_users(),
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'lldap_groups' => vv_lldap_list_groups(),
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'authelia_rules' => vv_authelia_read_rules(),
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default => ['ok' => false, 'error' => 'Unknown action: ' . $action],
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};
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echo json_encode($result);
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exit;
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}
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if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
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http_response_code(405);
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echo json_encode(['ok' => false, 'error' => 'GET or POST only']);
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exit;
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}
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$action = trim($_POST['action'] ?? '');
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$result = match ($action) {
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// NPM
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'npm_create' => vv_npm_create_proxy(json_decode($_POST['data'] ?? '{}', true) ?: []),
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'npm_update' => vv_npm_update_proxy((int)($_POST['id'] ?? 0), json_decode($_POST['data'] ?? '{}', true) ?: []),
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'npm_delete' => vv_npm_delete_proxy((int)($_POST['id'] ?? 0)),
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'npm_toggle' => vv_npm_toggle_proxy((int)($_POST['id'] ?? 0), ($_POST['enabled'] ?? '0') === '1'),
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// lldap
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'lldap_create_user' => vv_lldap_create_user($_POST['uid'] ?? '', $_POST['email'] ?? '', $_POST['display_name'] ?? '', $_POST['password'] ?? ''),
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'lldap_update_user' => vv_lldap_update_user($_POST['uid'] ?? '', $_POST['email'] ?? '', $_POST['display_name'] ?? ''),
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'lldap_delete_user' => vv_lldap_delete_user($_POST['uid'] ?? ''),
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'lldap_set_password' => vv_lldap_set_password($_POST['uid'] ?? '', $_POST['password'] ?? ''),
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'lldap_create_group' => vv_lldap_create_group($_POST['name'] ?? ''),
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'lldap_delete_group' => vv_lldap_delete_group((int)($_POST['id'] ?? 0)),
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'lldap_add_to_group' => vv_lldap_add_to_group($_POST['uid'] ?? '', (int)($_POST['gid'] ?? 0)),
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'lldap_remove_from_group' => vv_lldap_remove_from_group($_POST['uid'] ?? '', (int)($_POST['gid'] ?? 0)),
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// Authelia
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'authelia_save' => vv_authelia_write_rules(json_decode($_POST['rules'] ?? '[]', true) ?: [], $_POST['default_policy'] ?? 'deny'),
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default => ['ok' => false, 'error' => 'Unknown action: ' . $action],
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};
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echo json_encode($result);
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