Add f7push v0.1: FCM device registry and push API for F7cloud.

Portable occ-based config, OCS endpoints for APK registration, notification relay, and server-side push dispatch.

lib/Service/ConfigService.php

@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\F7Push\Service;
+
+use OCP\IConfig;
+use OCP\IURLGenerator;
+use OCP\Security\ISecureRandom;
+
+class ConfigService {
+	public const APP_ID = 'f7push';
+
+	public function __construct(
+		private IConfig $config,
+		private IURLGenerator $urlGenerator,
+		private ISecureRandom $secureRandom,
+	) {
+	}
+
+	public function isEnabled(): bool {
+		return $this->config->getAppValue(self::APP_ID, 'enabled', 'yes') === 'yes';
+	}
+
+	public function listenNotifications(): bool {
+		return $this->config->getAppValue(self::APP_ID, 'listen_notifications', 'yes') === 'yes';
+	}
+
+	public function getFirebaseProjectId(): string {
+		return trim($this->config->getAppValue(self::APP_ID, 'firebase_project_id', ''));
+	}
+
+	public function getFirebaseCredentials(): string {
+		return trim($this->config->getAppValue(self::APP_ID, 'firebase_credentials', ''));
+	}
+
+	public function isFirebaseConfigured(): bool {
+		return $this->getFirebaseProjectId() !== '' && $this->getFirebaseCredentials() !== '';
+	}
+
+	public function getApiSecret(): string {
+		$secret = trim($this->config->getAppValue(self::APP_ID, 'api_secret', ''));
+		if ($secret === '') {
+			$secret = $this->secureRandom->generate(48, ISecureRandom::CHAR_ALPHANUMERIC);
+			$this->config->setAppValue(self::APP_ID, 'api_secret', $secret);
+		}
+		return $secret;
+	}
+
+	public function regenerateApiSecret(): string {
+		$secret = $this->secureRandom->generate(48, ISecureRandom::CHAR_ALPHANUMERIC);
+		$this->config->setAppValue(self::APP_ID, 'api_secret', $secret);
+		return $secret;
+	}
+
+	public function isSourceEnabled(string $source): bool {
+		$raw = $this->config->getAppValue(self::APP_ID, 'enabled_sources', '*');
+		$raw = trim($raw);
+		if ($raw === '' || $raw === '*') {
+			return true;
+		}
+		$parts = array_map('trim', explode(',', strtolower($raw)));
+		return in_array(strtolower($source), $parts, true);
+	}
+
+	public function getDefaultClickUrl(): string {
+		$configured = trim($this->config->getAppValue(self::APP_ID, 'default_click_url', ''));
+		if ($configured !== '') {
+			return rtrim($configured, '/');
+		}
+		return rtrim($this->urlGenerator->getAbsoluteURL(''), '/');
+	}
+
+	public function verifyApiSecret(?string $provided): bool {
+		if ($provided === null || $provided === '') {
+			return false;
+		}
+		return hash_equals($this->getApiSecret(), $provided);
+	}
+}