feat: replace chb with consent groups and preserve runtime config (api#317, #17)

components/cons-utm.php

@@ -0,0 +1,48 @@
+<?php
+/** Собственный контракт cons Preland; существование группы проверяет основной API. */
+declare(strict_types=1);
+
+/** Переходный runtime-конфиг: новый код работает и до точечного обновления host config. */
+function prelandNormalizeConsConfig(array $config): array
+{
+    $config['utm'] = is_array($config['utm'] ?? null) ? $config['utm'] : [];
+    unset($config['utm']['chb']);
+    if (!is_array($config['utm']['cons'] ?? null)) {
+        $config['utm']['cons'] = ['weights' => ['1' => 100, '2' => 0], 'default' => '2'];
+    }
+    return $config;
+}
+
+/** Concrete номера не ограничены random-весами: новые группы создаются в CPanel API. */
+function prelandResolveCons(mixed $value, array $settings): string
+{
+    $valid = static fn (mixed $candidate): bool => (is_string($candidate) || is_int($candidate))
+        && preg_match('/^[1-9][0-9]{0,9}$/D', (string) $candidate) === 1
+        && (float) $candidate <= 2147483647;
+    $default = $valid($settings['default'] ?? null) ? (string) $settings['default'] : '2';
+    if ($valid($value)) return (string) $value;
+    if ($value !== 'rnd') return $default;
+
+    $weights = [];
+    foreach ((array) ($settings['weights'] ?? []) as $number => $weight) {
+        if ($valid($number) && is_numeric($weight) && is_finite((float) $weight) && (float) $weight > 0) {
+            $weights[(string) $number] = (float) $weight;
+        }
+    }
+    $total = array_sum($weights);
+    if ($total <= 0 || !is_finite($total)) return $default;
+    $point = (mt_rand() / (mt_getrandmax() + 1.0)) * $total;
+    foreach ($weights as $number => $weight) {
+        if ($point < $weight) return (string) $number;
+        $point -= $weight;
+    }
+    return (string) array_key_last($weights);
+}
+
+/** Legacy chb не должен проходить как неизвестный внешний рекламный параметр. */
+function prelandNormalizeConsQuery(array $query, array $settings): array
+{
+    unset($query['chb']);
+    $query['cons'] = prelandResolveCons($query['cons'] ?? null, $settings);
+    return $query;
+}

components/form.php

@@ -72,6 +72,16 @@ $basePickerAccept = 'image/jpeg,image/png,image/gif,image/webp,image/bmp,image/a
 	const utmData = <?= $utmJson ?>;
 	const redirectUrlBase = <?= json_encode($redirectUrlBase, JSON_UNESCAPED_UNICODE) ?>;
 	const redirectUrlUtm = <?= json_encode($redirectUrlUtm, JSON_UNESCAPED_UNICODE) ?>;
+	// Сохранённая до перехода на cons загрузка не должна вернуть legacy chb.
+	const normalizeConsentRedirect = query => {
+		const params = new URLSearchParams(query || '');
+		params.delete('chb');
+		const value = params.get('cons');
+		if (!/^[1-9][0-9]{0,9}$/.test(value || '') || Number(value) > 2147483647) {
+			params.set('cons', String(utmData.cons || '2'));
+		}
+		return params.toString();
+	};
 	const createApiUrl = <?= json_encode($createApiUrl, JSON_UNESCAPED_UNICODE) ?>;
 	const uploadPolicyApiUrl = <?= json_encode($uploadPolicyApiUrl, JSON_UNESCAPED_UNICODE) ?>;
 
@@ -202,7 +212,8 @@ $basePickerAccept = 'image/jpeg,image/png,image/gif,image/webp,image/bmp,image/a
 
 		function redirectToTour(record) {
 			let targetUrl = record.meta.redirectBase + encodeURIComponent(record.key);
-			if (record.meta.redirectUtm) targetUrl += '&' + record.meta.redirectUtm;
+			const redirectQuery = normalizeConsentRedirect(record.meta.redirectUtm);
+			if (redirectQuery) targetUrl += '&' + redirectQuery;
 			const shownTheme = window.ZoomzillaTheme.current();
 			targetUrl += '&shown_theme=' + encodeURIComponent(shownTheme);
 			window.PublicNavigationGuard.allowNavigation(() => { window.location.href = targetUrl; });