Files
fitme3070.pt/shared/platform-tools/functions_csrf.php
T
andreandClaude Opus 5 4d40adbf64 Vendor platform-tools: everything this site runs is now in one repo
shared/platform-tools was a git submodule. On this branch it is a plain
directory of tracked files, frozen at ea3616abae30106df283e73a3e2f9e5bb0e6ae90
— the same commit fotografia.andmore.pt pins. Contents are byte-identical to
that tree, verified blob by blob.

The submodule caused every deployment failure this site has had:

  - .gitmodules named no `branch`, so the update fell back to
    refs/remotes/origin/HEAD — a ref a plain server-side clone never writes.
    "Atualizar submódulo" failed with "Unable to find refs/remotes/origin/HEAD
    revision in submodule path".
  - Its URL was http://, which the origin answers with 523.
  - This install is deployed by uploading files, and a submodule is invisible
    to that. The tree moved forward while shared/platform-tools stayed on the
    old pin, config/functions_secrets.php died on a missing compat_secrets.php,
    and the whole site — public pages included — went down.

Each of those was separately fixable. Together they mean a second repository
nobody can see from the deployment path, gating whether the first one boots. A
plain directory deploys like every other file and cannot fall out of step.

The cost is that platform-tools updates no longer arrive by bumping a pin; they
are a copy-over-and-commit. shared/platform-tools/VENDORED.md records the
upstream SHA, the procedure, and which four files differ from upstream in line
endings only (social/*.js, .css, functions_publications.php — CRLF upstream,
normalised to LF here; content otherwise identical).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-13 23:06:23 +01:00

39 lines
1.5 KiB
PHP

<?php
// ─── CSRF helpers (shared) ───────────────────────────────────────────────────
//
// Self-contained double-submit-free session token for every POST form rendered
// by the platform-tools pages (platform_update.php, backups.php) and verified
// by their handlers. Deliberately independent of any per-host csrf helper —
// the only contract is the same one the flash messages already rely on: the
// stub's bootstrap has a PHP session available.
//
// Public API:
// platform_csrf_token(): string — session token (created on first use)
// platform_csrf_field(): string — ready-to-echo hidden <input>
// platform_csrf_ok(): bool — validate the token sent with a POST
function platform_csrf_token(): string {
if (session_status() !== PHP_SESSION_ACTIVE) {
@session_start();
}
if (empty($_SESSION['platform_tools_csrf'])) {
$_SESSION['platform_tools_csrf'] = bin2hex(random_bytes(32));
}
return (string) $_SESSION['platform_tools_csrf'];
}
function platform_csrf_field(): string {
return '<input type="hidden" name="_pt_csrf" value="'
. htmlspecialchars(platform_csrf_token())
. '">';
}
function platform_csrf_ok(): bool {
if (session_status() !== PHP_SESSION_ACTIVE) {
@session_start();
}
$sent = (string) ($_POST['_pt_csrf'] ?? '');
$have = (string) ($_SESSION['platform_tools_csrf'] ?? '');
return $sent !== '' && $have !== '' && hash_equals($have, $sent);
}