Add cancel snooze

- Add common request validation function

src/start.php

@@ -1,8 +1,9 @@
 <?php declare(strict_types=1);
 
-use BitBadger\PDODocument\{Configuration, Definition, Mode};
+use Auth0\SDK\Exception\ConfigurationException;
+use BitBadger\PDODocument\{Configuration, Definition, DocumentException, Mode};
 use Dotenv\Dotenv;
-use MyPrayerJournal\{Auth, Layout, Table};
+use MyPrayerJournal\{Auth, Request, Table};
 
 require __DIR__ . '/vendor/autoload.php';
 
@@ -25,6 +26,7 @@ if (php_sapi_name() != 'cli') {
 Configuration::$pdoDSN = 'sqlite:' . implode(DIRECTORY_SEPARATOR, [__DIR__, 'data', 'mpj.db']);
 Configuration::$mode   = Mode::SQLite;
 Definition::ensureTable(Table::REQUEST);
+Definition::ensureFieldIndex(Table::REQUEST, 'user', ['userId']);
 
 $_PATCH = [];
 if ($_SERVER['REQUEST_METHOD'] ?? '' == 'PATCH') parse_str(file_get_contents('php://input'), $_PATCH);
@@ -59,3 +61,25 @@ function hide_modal(string $name): void
 {
     header("X-Hide-Modal: $name");
 }
+
+/**
+ * Validate the user, HTTP method, and request
+ *
+ * @param string $id The ID of the prayer request to retrieve
+ * @param array $methods The allowable HTTP methods
+ * @param bool $redirect Whether to redirect not-logged-on users (optional, defaults to true)
+ * @return Request The request (failures will not return)
+ * @throws ConfigurationException If any is encountered
+ * @throws DocumentException If any is encountered
+ */
+function validate_request(string $id, array $methods, bool $redirect = true): Request
+{
+    if (sizeof(array_filter($methods, fn($it) => $_SERVER['REQUEST_METHOD'] == $it)) == 0) not_found();
+
+    Auth::requireUser($redirect);
+
+    $req = Request::byId($id);
+    if (!$req) not_found();
+
+    return $req;
+}