| 1 |
<?php |
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|
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declare(strict_types=1); |
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|
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namespace Yatra\Core; |
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|
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use Yatra\Core\Routing\Router; |
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use Yatra\Core\Routing\PermalinkCanonical; |
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use Yatra\Core\Routing\UrlParser; |
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use Yatra\Core\Routing\PageContext; |
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use Yatra\Core\Template\FseTemplates; |
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use Yatra\Services\SettingsService; |
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use Yatra\Core\Handlers\BookingConfirmationPageHandler; |
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|
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/** |
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* Template Loader |
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* |
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* Handles all frontend template loading and routing for Yatra pages. |
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* Uses a modern, modular architecture with dedicated routing and asset management. |
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* |
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* @package Yatra\Core |
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* @since 3.0.0 |
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*/ |
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class TemplateLoader |
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{ |
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/** |
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* Router instance |
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*/ |
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private static ?Router $router = null; |
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|
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/** |
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* Initialize template loading hooks |
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*/ |
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public static function init(): void |
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{ |
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// Initialize rewrite rules and query vars first |
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add_action('init', [self::class, 'addTripRewriteRules'], 10); |
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add_filter('query_vars', [self::class, 'addCustomQueryVars']); |
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|
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// FSE Site Editor integration — virtual block templates + page-content block. |
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// No-ops on classic themes. |
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FseTemplates::init(); |
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|
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// Prevent WP::handle_404() from marking Yatra URLs as 404 in the first place. |
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// This is the proper WordPress way — fires before status_header(404) is sent and |
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// before FSE locate_block_template() reads is_404() to pick 404.html. |
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add_filter('pre_handle_404', [self::class, 'preventCore404'], 10, 2); |
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|
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// Strip the `error404` body class for Yatra requests so FSE themes don't apply |
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// 404-specific styling to plugin pages. |
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add_filter('body_class', [self::class, 'filterBodyClass'], 20); |
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|
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add_action('template_redirect', [PermalinkCanonical::class, 'enforce'], 0); |
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|
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// Initialize the main router for template handling. Handlers configure |
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// $wp_query + a virtual WP_Post here and stash the chosen template in |
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// PageContext; they do NOT include or exit, so the full template-loader |
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// pipeline (template hierarchy resolution, wp_head, wp_footer, plugin |
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// template_include hooks) continues to run normally. |
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add_action('template_redirect', [self::class, 'handleTemplateRedirect'], 1); |
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|
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// Hand off to WordPress's template-loader: if a Yatra handler queued a |
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// template via PageContext, swap it in here. Priority 99 ensures we run |
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// after FSE's locate_block_template() (default priority 10) so we win |
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// over the theme's block-template choice without disabling FSE for the |
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// rest of the site. |
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add_filter('template_include', [self::class, 'filterTemplateInclude'], 99); |
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} |
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|
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/** |
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* Short-circuit WP::handle_404() for Yatra-owned URLs. |
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* |
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* Returning true tells WordPress core to skip setting is_404 / status_header(404). |
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* This keeps FSE/block themes from resolving to 404.html and pulling the wrong |
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* header template part. The Router still runs on template_redirect to actually |
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* render the page; this filter only prevents the premature 404 marking. |
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* |
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* @param bool $preempt Whether to short-circuit default 404 handling. |
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* @param \WP_Query $wp_query The main WP_Query instance (unused — detection uses globals). |
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* @return bool |
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*/ |
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public static function preventCore404($preempt, /** @noinspection PhpUnusedParameterInspection */ $wp_query) |
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{ |
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if ($preempt) { |
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return $preempt; |
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} |
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if (!self::isYatraRequest()) { |
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return $preempt; |
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} |
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// Mirror what WP::handle_404() does on success: do NOT set is_404, but ensure |
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// status header is 200 so downstream caches / CDNs behave correctly. |
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status_header(200); |
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nocache_headers(); |
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return true; |
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} |
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|
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/** |
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* Remove the `error404` body class for Yatra pages so FSE themes render normal page chrome. |
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* |
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* @param array $classes |
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* @return array |
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*/ |
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public static function filterBodyClass(array $classes): array |
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{ |
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$ctx = PageContext::instance(); |
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$isYatra = self::isYatraRequest() || $ctx->isHandled(); |
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if (!$isYatra) { |
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return $classes; |
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} |
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|
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$classes = array_values(array_filter($classes, static function ($c) { |
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return $c !== 'error404' && $c !== 'error-404'; |
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})); |
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|
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if (!in_array('yatra-page', $classes, true)) { |
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$classes[] = 'yatra-page'; |
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} |
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|
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foreach ($ctx->getBodyClasses() as $extra) { |
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if (!in_array($extra, $classes, true)) { |
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$classes[] = $extra; |
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} |
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} |
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|
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return $classes; |
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} |
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|
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/** |
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* Public detection helper — true when the current request belongs to a Yatra route. |
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* Centralises the logic previously in shouldClear404ForYatraRouting() so it can be |
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* reused by pre_handle_404 and body_class filters. |
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*/ |
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public static function isYatraRequest(): bool |
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{ |
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return self::shouldClear404ForYatraRouting(); |
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} |
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|
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/** |
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* `template_include` filter — choose between PHP template and FSE block template. |
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* |
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* Decision flow when a Yatra handler has queued a template: |
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* 1. If the admin has customised the matching virtual block template in the |
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* Site Editor (wp_template post with source = 'custom'), defer to FSE — |
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* WP renders the customised block template, which embeds Yatra content |
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* via the `yatra/page-content` server block. Their edits take effect. |
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* 2. Otherwise return Yatra's PHP template. It's faster, cache-friendly, |
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* and the path the plugin tested most. |
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* |
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* For non-Yatra requests, return $template unchanged so the theme/FSE keep control. |
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*/ |
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public static function filterTemplateInclude(string $template): string |
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{ |
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$ctx = PageContext::instance(); |
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if (!$ctx->hasTemplate()) { |
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return $template; |
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} |
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|
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// If the admin has saved a Site-Editor customisation for this page |
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// type, render via WordPress's block-template canvas with the saved |
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// content. loadCustomisedCanvas() returns null if no customisation |
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// exists (the common case) or returns template-canvas.php with the |
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// canvas globals primed. |
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$pageType = $ctx->getPageType(); |
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if ($pageType !== '') { |
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$canvas = FseTemplates::loadCustomisedCanvas($pageType); |
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if ($canvas !== null) { |
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return $canvas; |
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} |
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} |
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|
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$selected = $ctx->getTemplate(); |
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return $selected !== null ? $selected : $template; |
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} |
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|
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/** |
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* Handle template_redirect: |
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* 1. Clear residual is_404 (paged-home quirk; pre_handle_404 catches the rest). |
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* 2. Run the Router — handlers configure $wp_query and queue a template. |
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* 3. Fall through to WordPress's template-loader. Our template_include |
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* filter at priority 99 swaps in the Yatra template if one was queued. |
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* |
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* No include + exit here — that was the source of the FSE breakage. |
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*/ |
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public static function handleTemplateRedirect(): void |
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{ |
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global $wp_query; |
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|
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if (!empty($wp_query->is_404) && self::shouldClear404ForYatraRouting()) { |
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$wp_query->is_404 = false; |
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status_header(200); |
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} |
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|
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if (!empty($wp_query->is_404)) { |
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return; |
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} |
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|
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if (!self::$router) { |
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self::$router = new Router(); |
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} |
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|
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$handled = self::$router->route(); |
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|
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// Plain-permalink fallback: ?yatra_booking_confirmation=... still needs |
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// an explicit dispatch because PlainPageMatcher doesn't know about it. |
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if (!$handled) { |
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$confirmationId = get_query_var('yatra_booking_confirmation') |
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?: ($_GET['yatra_booking_confirmation'] ?? ($_GET['reference'] ?? ($_GET['booking_id'] ?? ''))); |
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if (!empty($confirmationId)) { |
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$handler = new BookingConfirmationPageHandler(); |
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$handler->handle([ |
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'confirmation_id' => sanitize_text_field((string) $confirmationId), |
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]); |
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} |
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} |
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|
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// No exit. The selected Yatra template (if any) is in PageContext; |
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// filterTemplateInclude() will return it from the template_include filter. |
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} |
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|
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/** |
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* True when this request should be routed by Yatra even if WP marked it 404 (paged home quirk). |
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*/ |
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private static function shouldClear404ForYatraRouting(): bool |
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{ |
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if (is_admin() || wp_doing_ajax() || wp_doing_cron()) { |
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return false; |
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} |
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|
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$yatraPage = isset($_GET['yatra_page']) ? trim((string) wp_unslash($_GET['yatra_page'])) : ''; |
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if ($yatraPage !== '') { |
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return true; |
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} |
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|
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$qv = (string) get_query_var('yatra_page'); |
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if ($qv !== '') { |
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return true; |
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} |
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|
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// Plain trip / taxonomy slug keys (same idea as {@see PermalinkCanonical::requestHasPlainYatraRoutingQuery}) |
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$tripKey = preg_replace('/[^a-zA-Z0-9_-]/', '', (string) SettingsService::getTripBase()) ?: 'trip'; |
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if (isset($_GET[$tripKey]) && is_string($_GET[$tripKey]) && trim(wp_unslash($_GET[$tripKey])) !== '') { |
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return true; |
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} |
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|
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foreach ( |
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[ |
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SettingsService::getDestinationBase(), |
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SettingsService::getActivityBase(), |
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SettingsService::getTripCategoryBase(), |
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] as $base |
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) { |
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$bk = preg_replace('/[^a-zA-Z0-9_-]/', '', $base) ?: ''; |
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if ($bk === '' || $bk === $tripKey) { |
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continue; |
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} |
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if (isset($_GET[$bk]) && is_string($_GET[$bk]) && trim(wp_unslash($_GET[$bk])) !== '') { |
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return true; |
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} |
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} |
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|
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foreach (['yatra_trip', 'yatra_trip_slug', 'yatra_destination_slug', 'yatra_activity_slug', 'yatra_category_slug', 'yatra_booking_confirmation', 'yatra_verify_email'] as $key) { |
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if (!isset($_GET[$key])) { |
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continue; |
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} |
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$v = wp_unslash($_GET[$key]); |
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if (is_string($v) && trim($v) !== '') { |
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return true; |
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} |
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} |
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|
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if ((string) get_query_var('yatra_verify_email') !== '') { |
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return true; |
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} |
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|
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$verifyPath = trim(UrlParser::getCleanRequestPath(), '/'); |
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$verifyPrefix = SettingsService::getPermalinkBases()['email_verification_prefix']; |
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if ($verifyPath !== '' && strpos($verifyPath, $verifyPrefix . '/') === 0) { |
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return true; |
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} |
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|
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return (bool) apply_filters('yatra_clear_404_for_routing', false); |
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} |
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|
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/** |
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* Add rewrite rules for trip permalinks and listing pages |
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*/ |
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public static function addTripRewriteRules(): void |
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{ |
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$bases = SettingsService::getPermalinkBases(); |
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$trip_base = $bases['trip_base']; |
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$booking_base = $bases['booking_base']; |
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$account_base = $bases['account_base']; |
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$destination_base = $bases['destination_base']; |
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$activity_base = $bases['activity_base']; |
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$trip_category_base = $bases['trip_category_base']; |
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$bookingConfirmSeg = $bases['booking_flow_confirmation_segment']; |
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$legacyBookingConfirmation = $bases['legacy_booking_confirmation_prefix']; |
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$remainingCheckout = $bases['remaining_checkout_prefix']; |
| 299 |
$emailVerifyPrefix = $bases['email_verification_prefix']; |
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|
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// Add query vars first (must be registered before rewrite rules) |
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// Single-trip slug query var matches trip URL base (e.g. trip=, tours=) |
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add_rewrite_tag('%' . $trip_base . '%', '([^&]+)'); |
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add_rewrite_tag('%yatra_booking_confirmation%', '([^&]+)'); |
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add_rewrite_tag('%yatra_remaining_checkout%', '([^&]+)'); |
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add_rewrite_tag('%yatra_verify_email%', '([^&]+)'); |
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// Single taxonomy page tags |
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add_rewrite_tag('%yatra_destination_slug%', '([^&]+)'); |
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add_rewrite_tag('%yatra_activity_slug%', '([^&]+)'); |
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add_rewrite_tag('%yatra_category_slug%', '([^&]+)'); |
| 311 |
add_rewrite_tag('%yatra_page%', '([a-zA-Z0-9_-]+)'); |
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add_rewrite_tag('%paged%', '([0-9]+)'); |
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|
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// Add rewrite rule for email verification: /{email_verification_prefix}/{token}/ |
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add_rewrite_rule( |
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'^' . $emailVerifyPrefix . '/([a-zA-Z0-9_-]+)/?$', |
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'index.php?yatra_verify_email=$matches[1]', |
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'top' |
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); |
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|
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// Trip listing pagination: {trip_base}/page/{n}/ |
| 322 |
add_rewrite_rule( |
| 323 |
'^' . $trip_base . '/page/([0-9]+)/?$', |
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'index.php?yatra_page=' . $trip_base . '&paged=$matches[1]', |
| 325 |
'top' |
| 326 |
); |
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|
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// Trip listing (page 1): {trip_base}/ |
| 329 |
add_rewrite_rule( |
| 330 |
'^' . $trip_base . '/?$', |
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'index.php?yatra_page=' . $trip_base, |
| 332 |
'top' |
| 333 |
); |
| 334 |
|
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// Customer account (pageless): /{account_base}/ and /{account_base}/{tab}/ |
| 336 |
// Must be real rewrite rules so WordPress doesn't 404 before Yatra Router runs. |
| 337 |
add_rewrite_rule( |
| 338 |
'^' . $account_base . '/?$', |
| 339 |
'index.php?yatra_page=' . $account_base . '&yatra_account_page=dashboard', |
| 340 |
'top' |
| 341 |
); |
| 342 |
|
| 343 |
add_rewrite_rule( |
| 344 |
'^' . $account_base . '/([^/]+)/?$', |
| 345 |
'index.php?yatra_page=' . $account_base . '&yatra_account_page=$matches[1]', |
| 346 |
'top' |
| 347 |
); |
| 348 |
|
| 349 |
// Single trip: {trip_base}/{trip_slug}/ |
| 350 |
add_rewrite_rule( |
| 351 |
'^' . $trip_base . '/([^/]+)/?$', |
| 352 |
'index.php?yatra_page=' . $trip_base . '&' . $trip_base . '=$matches[1]', |
| 353 |
'top' |
| 354 |
); |
| 355 |
|
| 356 |
// Taxonomy: single + pagination (yatra_page = base from settings; paged = WP pagination) |
| 357 |
add_rewrite_rule( |
| 358 |
'^' . $destination_base . '/([^/]+)/page/([0-9]+)/?$', |
| 359 |
'index.php?yatra_page=' . $destination_base . '&yatra_destination_slug=$matches[1]&paged=$matches[2]', |
| 360 |
'top' |
| 361 |
); |
| 362 |
|
| 363 |
add_rewrite_rule( |
| 364 |
'^' . $destination_base . '/([^/]+)/?$', |
| 365 |
'index.php?yatra_page=' . $destination_base . '&yatra_destination_slug=$matches[1]', |
| 366 |
'top' |
| 367 |
); |
| 368 |
|
| 369 |
add_rewrite_rule( |
| 370 |
'^' . $destination_base . '/?$', |
| 371 |
'index.php?yatra_page=' . $destination_base, |
| 372 |
'top' |
| 373 |
); |
| 374 |
|
| 375 |
add_rewrite_rule( |
| 376 |
'^' . $activity_base . '/([^/]+)/page/([0-9]+)/?$', |
| 377 |
'index.php?yatra_page=' . $activity_base . '&yatra_activity_slug=$matches[1]&paged=$matches[2]', |
| 378 |
'top' |
| 379 |
); |
| 380 |
|
| 381 |
add_rewrite_rule( |
| 382 |
'^' . $activity_base . '/([^/]+)/?$', |
| 383 |
'index.php?yatra_page=' . $activity_base . '&yatra_activity_slug=$matches[1]', |
| 384 |
'top' |
| 385 |
); |
| 386 |
|
| 387 |
add_rewrite_rule( |
| 388 |
'^' . $activity_base . '/?$', |
| 389 |
'index.php?yatra_page=' . $activity_base, |
| 390 |
'top' |
| 391 |
); |
| 392 |
|
| 393 |
add_rewrite_rule( |
| 394 |
'^' . $trip_category_base . '/([^/]+)/page/([0-9]+)/?$', |
| 395 |
'index.php?yatra_page=' . $trip_category_base . '&yatra_category_slug=$matches[1]&paged=$matches[2]', |
| 396 |
'top' |
| 397 |
); |
| 398 |
|
| 399 |
add_rewrite_rule( |
| 400 |
'^' . $trip_category_base . '/([^/]+)/?$', |
| 401 |
'index.php?yatra_page=' . $trip_category_base . '&yatra_category_slug=$matches[1]', |
| 402 |
'top' |
| 403 |
); |
| 404 |
|
| 405 |
add_rewrite_rule( |
| 406 |
'^' . $trip_category_base . '/?$', |
| 407 |
'index.php?yatra_page=' . $trip_category_base, |
| 408 |
'top' |
| 409 |
); |
| 410 |
|
| 411 |
// Pageless booking confirmation: /{booking_base}/{confirmation_segment}/{reference}/ (before trip slug rule) |
| 412 |
add_rewrite_rule( |
| 413 |
'^' . $booking_base . '/' . $bookingConfirmSeg . '/([a-zA-Z0-9_-]+)/?$', |
| 414 |
'index.php?yatra_booking_confirmation=$matches[1]', |
| 415 |
'top' |
| 416 |
); |
| 417 |
|
| 418 |
// Booking with trip slug: /{booking_base}/{trip}/ |
| 419 |
add_rewrite_rule( |
| 420 |
'^' . $booking_base . '/([^/]+)/?$', |
| 421 |
'index.php?yatra_page=' . $booking_base . '&trip=$matches[1]', |
| 422 |
'top' |
| 423 |
); |
| 424 |
|
| 425 |
// Booking hub (Settings → booking base, e.g. /book/) |
| 426 |
add_rewrite_rule( |
| 427 |
'^' . $booking_base . '/?$', |
| 428 |
'index.php?yatra_page=' . $booking_base, |
| 429 |
'top' |
| 430 |
); |
| 431 |
|
| 432 |
// Legacy booking confirmation: /{legacy_booking_confirmation_prefix}/{reference} |
| 433 |
add_rewrite_rule( |
| 434 |
'^' . $legacyBookingConfirmation . '/([a-zA-Z0-9_-]+)/?$', |
| 435 |
'index.php?yatra_booking_confirmation=$matches[1]', |
| 436 |
'top' |
| 437 |
); |
| 438 |
|
| 439 |
// Remaining checkout: /{remaining_checkout_prefix}/{token}/ |
| 440 |
add_rewrite_rule( |
| 441 |
'^' . $remainingCheckout . '/([a-zA-Z0-9_-]+)/?$', |
| 442 |
'index.php?yatra_remaining_checkout=$matches[1]', |
| 443 |
'top' |
| 444 |
); |
| 445 |
|
| 446 |
/** |
| 447 |
* Fires after Yatra registers its core rewrite tags/rules. |
| 448 |
* |
| 449 |
* Use {@see \Yatra\Services\SettingsService::getPermalinkBases()} for the same slugs/helpers use. |
| 450 |
* |
| 451 |
* @param array<string, string> $bases |
| 452 |
*/ |
| 453 |
do_action('yatra_register_rewrite_rules', $bases); |
| 454 |
|
| 455 |
// Check if rewrite rules need flushing (only flush once after plugin update/activation) |
| 456 |
$rewrite_version = get_option('yatra_rewrite_rules_version', '0'); |
| 457 |
$current_version = '1.0.9'; // Increment this when rewrite rules change |
| 458 |
if ($rewrite_version !== $current_version) { |
| 459 |
flush_rewrite_rules(false); |
| 460 |
update_option('yatra_rewrite_rules_version', $current_version); |
| 461 |
} |
| 462 |
} |
| 463 |
|
| 464 |
/** |
| 465 |
* Add custom query vars for Yatra functionality |
| 466 |
*/ |
| 467 |
public static function addCustomQueryVars(array $vars): array |
| 468 |
{ |
| 469 |
$yatra_vars = [ |
| 470 |
'yatra_trip', // legacy plain/pretty query var for trip slug |
| 471 |
'yatra_booking_confirmation', |
| 472 |
'yatra_remaining_checkout', |
| 473 |
'yatra_verify_email', |
| 474 |
'yatra_account_page', |
| 475 |
'yatra_destination_slug', |
| 476 |
'yatra_activity_slug', |
| 477 |
'yatra_category_slug', |
| 478 |
'yatra_page', |
| 479 |
'paged', |
| 480 |
]; |
| 481 |
|
| 482 |
// Add dynamic base names for plain permalink support |
| 483 |
$pb = SettingsService::getPermalinkBases(); |
| 484 |
$yatra_vars[] = $pb['trip_base']; |
| 485 |
$yatra_vars[] = $pb['destination_base']; |
| 486 |
$yatra_vars[] = $pb['activity_base']; |
| 487 |
$yatra_vars[] = $pb['trip_category_base']; |
| 488 |
|
| 489 |
return array_merge($vars, $yatra_vars); |
| 490 |
} |
| 491 |
|
| 492 |
/** |
| 493 |
* Get client IP address |
| 494 |
*/ |
| 495 |
private static function getClientIp(): string |
| 496 |
{ |
| 497 |
$ip_keys = ['HTTP_X_FORWARDED_FOR', 'HTTP_X_REAL_IP', 'HTTP_CLIENT_IP', 'REMOTE_ADDR']; |
| 498 |
|
| 499 |
foreach ($ip_keys as $key) { |
| 500 |
if (!empty($_SERVER[$key])) { |
| 501 |
$ips = explode(',', $_SERVER[$key]); |
| 502 |
$ip = trim($ips[0]); |
| 503 |
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE)) { |
| 504 |
return $ip; |
| 505 |
} |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
return $_SERVER['REMOTE_ADDR'] ?? '0.0.0.0'; |
| 510 |
} |
| 511 |
} |
| 512 |
|
