Feature: Added support for the Custom Search JSON API.

README.md

@@ -2,20 +2,20 @@
 
 Replace WordPress default search with Google Custom Search results.
 
-**Contributors:** [rtCamp](https://github.com/rtCamp/), [Kiran Potphode](https://github.com/kiranpotphode/)
+**Contributors:** [rtCamp](https://github.com/rtCamp/), [Kiran Potphode](https://github.com/kiranpotphode/), [Shalin Shah](https://github.com/SH4LIN)
 
 **Tags:** google, search, cse, custom search engine, programmable search, programmable search engine, google cse, google custom search engine, google programmable search, google programmable search engine, google search
 
 **Requires at least:** 4.9
 
-**Tested up to:** 5.5
+**Tested up to:** 6.4.2
 
 **License:** [GPLv2 or later](http://www.gnu.org/licenses/gpl-2.0.html)
 
-**Requires PHP:** 8.0+
+**Requires PHP:** 7.4
 
 ## Description
-This plugin will replace the WordPress default search query with server-side results from [Custom Search Site Restricted JSON API](https://developers.google.com/custom-search/v1/site_restricted_api).
+This plugin will replace the WordPress default search query with server-side results from either the [Custom Search Site Restricted JSON API](https://developers.google.com/custom-search/v1/site_restricted_api) or the [Custom Search JSON API](https://developers.google.com/custom-search/v1/overview). You can make your selection within the settings > Reading > Search type. This replacement is done on the WordPress back-end, so results appear as normal within WordPress search.
 
 ## Requirements
 - [Google API Key](https://console.developers.google.com/apis/credentials)
@@ -24,11 +24,14 @@ This plugin will replace the WordPress default search query with server-side res
 ## Setup
 - [Get Google API key](https://developers.google.com/custom-search/v1/introduction). An API key is a way to identify your client to Google.
 - [Get Programmable Search engine ID](https://cse.google.com/). In settings, restrict the Search engine to only search for your one site.
- - On WordPress dashboard, set API Key and Custom Search Engine ID in the plugin settings. `Dashboard > Settings > Reading > Search with Google Settings`.
+- On WordPress dashboard, set API Key and Custom Search Engine ID in the plugin settings. `Dashboard > Settings > Reading > Search with Google Settings`.
+- Select the search type from Custom Search Site Restricted JSON API or Custom Search API. (Refer [#Notes](#notes) section for more details)
 
 ## Notes
 - Custom Search Site Restricted JSON API can show only 100 search results for the query.
 - A result page can have maximum of 10 results.
+- Assistance for Custom Site Restricted Search JSON API is scheduled to cease as of December 18, 2024. [Read more](https://developers.google.com/custom-search/v1/site_restricted_api). Due to this modification, we are introducing an opt-in feature that enables the use of solely the Custom Search API, as opposed to the Custom Site-restricted Search API. This will allow you to continue using the Custom Search API after December 18, 2024.
+- Custom Site Search API has a daily limit of 10,000 queries per day. [Read more](https://developers.google.com/custom-search/v1/overview#pricing).
 
 ## Contribute
 

assets/css/settings.css

@@ -0,0 +1,54 @@
+.switch-wrapper {
+	display: flex;
+	align-items: center;
+	justify-content: flex-start;
+	gap: 14px;
+	flex-wrap: wrap;
+}
+
+.switch {
+	position: relative;
+	display: inline-block;
+	width: 50px;
+	height: 24px;
+}
+
+.switch input {
+	opacity: 0;
+	width: 0;
+	height: 0;
+	overflow: hidden;
+}
+
+.slider {
+	position: absolute;
+	cursor: pointer;
+	top: 0;
+	left: 0;
+	right: 0;
+	bottom: 0;
+	display: flex;
+	align-items: center;
+	background-color: #ccc;
+	-webkit-transition: transform .4s;
+	transition: transform .4s;
+	border-radius: 34px;
+}
+
+.slider::before {
+	position: absolute;
+	content: "";
+	height: 18px;
+	width: 18px;
+	left: 2px;
+	background-color: white;
+	-webkit-transition: .4s;
+	transition: .4s;
+	border-radius: 50%;
+}
+
+input[name="gcs_search_type"]:checked ~ .slider:before {
+	-webkit-transform: translateX(calc(50px - 20px - 2px));
+	-ms-transform: translateX(calc(50px - 20px - 2px));
+	transform: translateX(calc(50px - 20px - 2px));
+}

inc/classes/class-assets.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * Assets class.
+ *
+ * @package search-with-google
+ */
+
+namespace RT\Search_With_Google\Inc;
+
+use RT\Search_With_Google\Inc\Traits\Singleton;
+
+/**
+ * Class Assets
+ */
+class Assets {
+
+	use Singleton;
+
+	/**
+	 * Construct method.
+	 */
+	protected function __construct() {
+
+		$this->setup_hooks();
+
+	}
+
+	/**
+	 * Action / Filters to be declare here.
+	 *
+	 * @return void
+	 */
+	protected function setup_hooks() {
+
+		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_assets' ) );
+
+	}
+
+	/**
+	 * Enqueue admin assets.
+	 *
+	 * @param string $hook_suffix Hook suffix.
+	 *
+	 * @return void
+	 */
+	public function enqueue_admin_assets( $hook_suffix ) {
+
+		if ( 'options-reading.php' === $hook_suffix ) {
+			wp_enqueue_style(
+				'search-with-google-settings-style',
+				SEARCH_WITH_GOOGLE_URL . '/assets/css/settings.css',
+				array(),
+				filemtime( SEARCH_WITH_GOOGLE_PATH . '/assets/css/settings.css' )
+			);
+		}
+	}
+}

inc/classes/class-notice.php

@@ -46,17 +46,31 @@ protected function setup_hooks() {
 	 */
 	public function display_notice() {
 
-		$read_more_url = 'https://developers.google.com/custom-search/v1/site_restricted_api';
+		$custom_site_restricted_search_read_more = 'https://developers.google.com/custom-search/v1/site_restricted_api';
+		$custom_search_read_more                 = 'https://developers.google.com/custom-search/v1/overview#pricing';
 		?>
 		<div class="notice notice-error">
 			<p>
 				<?php
-				esc_html_e( 'Notice : This plugin uses a Custom site-restricted Search API which has been deprecated by Google. Hence, limiting its use to only users with existing API keys. Any new API request to Google will return a 403 error, and it will return an empty posts array on the front-end.', 'search-with-google' );
+				esc_html_e( 'According to a notification from Google, assistance for custom site-restricted search is scheduled to cease as of December 18, 2024.', 'search-with-google' );
 				?>
-				<a href="<?php echo esc_url( $read_more_url ); ?>" target="_blank">
+				<a href="<?php echo esc_url( $custom_site_restricted_search_read_more ); ?>" target="_blank">
 					<?php esc_html_e( 'Read more', 'search-with-google' ); ?>
 				</a>
 			</p>
+			<p>
+				<?php esc_html_e( 'Due to this modification, we are introducing an opt-in feature that enables the use of solely the Custom Search API, as opposed to the Custom Site-restricted Search API. You have the option to opt in for this change by ', 'search-with-google' ); ?>
+				<a href="<?php echo esc_url( admin_url( 'options-reading.php#search-type' ) ); ?>">
+					<?php esc_html_e( 'Settings > Reading', 'search-with-google' ); ?>
+				</a>
+			</p>
+
+			<p>
+				<?php esc_html_e( 'Note: If you utilize the Custom Search API, there are limitations on the daily volume of search queries allowed. Kindly refer ', 'search-with-google' ); ?>
+				<a href="<?php echo esc_url( $custom_search_read_more ); ?>" target="_blank">
+					<?php esc_html_e( 'Documentation', 'search-with-google' ); ?>
+				</a>
+			</p>
 		</div>
 		<?php
 

inc/classes/class-plugin.php

@@ -22,6 +22,7 @@ class Plugin {
 	protected function __construct() {
 
 		// Load plugin classes.
+		Assets::get_instance();
 		Settings::get_instance();
 		Search::get_instance();
 		Notice::get_instance();

inc/classes/class-search-engine.php

@@ -16,13 +16,6 @@ class Search_Engine {
 
 	use Singleton;
 
-	/**
-	 * Custom Search Site Restricted JSON API URL.
-	 *
-	 * @var string
-	 */
-	const GOOGLE_API_URL = 'https://customsearch.googleapis.com/customsearch/v1/siterestrict';
-
 	/**
 	 * API Key.
 	 *
@@ -80,7 +73,7 @@ public function get_search_results( $search_query, $page = 1, $posts_per_page =
 				'q'   => rawurlencode( $search_query ),
 				'num' => $posts_per_page,
 			),
-			self::GOOGLE_API_URL
+			$this->get_api_url()
 		);
 
 		if ( $page > 1 ) {
@@ -166,4 +159,22 @@ public function get_start_index( $page, $posts_per_page ) {
 		return ( $page * $posts_per_page ) - ( $posts_per_page - 1 );
 
 	}
+
+	/**
+	 * Get API URL.
+	 *
+	 * @return string
+	 */
+	private function get_api_url() {
+
+		$search_type = get_option( 'gcs_search_type' );
+		$api_url     = 'https://www.googleapis.com/customsearch/v1/siterestrict';
+
+		if ( ! empty( $search_type ) ) {
+			$api_url = 'https://www.googleapis.com/customsearch/v1';
+		}
+
+		return $api_url;
+
+	}
 }

inc/classes/class-settings.php

@@ -50,6 +50,7 @@ public function register_settings() {
 
 		register_setting( 'reading', 'gcs_api_key', $args );
 		register_setting( 'reading', 'gcs_cse_id', $args );
+		register_setting( 'reading', 'gcs_search_type', $args );
 
 		// Register a new section in the "reading" page.
 		add_settings_section(
@@ -75,6 +76,15 @@ public function register_settings() {
 			'cse_settings_section'
 		);
 
+		// Add a new toggle setting field for selecting between custom search API and custom site-restricted search API.
+		add_settings_field(
+			'gcs_search_type',
+			__( 'Search Type', 'search-with-google' ),
+			array( $this, 'cse_search_type_field_cb' ),
+			'reading',
+			'cse_settings_section'
+		);
+
 	}
 
 	/**
@@ -112,5 +122,28 @@ public function cse_id_field_cb() {
 		<input type="text" name="gcs_cse_id" value="<?php echo ! empty( $setting ) ? esc_attr( $setting ) : ''; ?>">
 		<?php
 	}
+
+	/**
+	 * Search Type field markup.
+	 *
+	 * @return void
+	 */
+	public function cse_search_type_field_cb() {
+		// Get the value of the setting we've registered with register_setting().
+		$setting = get_option( 'gcs_search_type' );
+		// Add slider toggle switch.
+		?>
+		<div class="switch-wrapper">
+			<span><?php esc_html_e( 'Custom Site Restricted Search API', 'search-with-google' ); ?></span>
+
+			<label class="switch">
+				<input id="search-type" type="checkbox" name="gcs_search_type" value="1" <?php echo ! empty( $setting ) ? 'checked' : ''; ?>>
+				<span class="slider"></span>
+			</label>
+
+			<span><?php esc_html_e( 'Custom Search API', 'search-with-google' ); ?></span>
+		</div>
+		<?php
+	}
 }
 

readme.txt

@@ -1,32 +1,35 @@
 === Search with Google ===
-Contributors: rtCamp, kiranpotphode
+Contributors: rtCamp, kiranpotphode, sh4lin
 Donate link: https://rtcamp.com/
 Tags: google, search, cse, custom search engine, programmable search, programmable search engine, google cse, google custom search engine, google programmable search, google programmable search engine, google search
 Requires at least: 4.8
-Tested up to: 5.5
-Stable tag: 1.0
-Requires PHP: 8.0
+Tested up to: 6.4.2
+Stable tag: 1.1
+Requires PHP: 7.4
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
 Replace WordPress default search with server-side rendered Google Custom Search results.
 
 == Description ==
 
-This plugin will replace the WordPress default search query with server-side results from [Custom Search Site Restricted JSON API](https://developers.google.com/custom-search/v1/site_restricted_api). This replacement is done on the WordPress back-end, so results appear as normal within WordPress search.
+This plugin will replace the WordPress default search query with server-side results from either the [Custom Search Site Restricted JSON API](https://developers.google.com/custom-search/v1/site_restricted_api) or the [Custom Search JSON API](https://developers.google.com/custom-search/v1/overview). You can make your selection within the settings > Reading > Search type. This replacement is done on the WordPress back-end, so results appear as normal within WordPress search.
 
 = Requirements =
 1. [Google API Key](https://console.developers.google.com/apis/credentials)
-1. [Programmable Search engine ID](https://cse.google.com/all)
+2. [Programmable Search engine ID](https://cse.google.com/all)
+
 
 = Setup =
 1. [Get Google API key](https://developers.google.com/custom-search/v1/introduction). An API key is a way to identify your client to Google.
-1. [Get Programmable Search engine ID](https://cse.google.com/). In Google settings, restrict the Search engine to only search for your one site.
-1. On WordPress dashboard, set API Key and Custom Search Engine ID in the plugin settings. `Dashboard > Settings > Reading > Search with Google Settings`.
+2. [Get Programmable Search engine ID](https://cse.google.com/). In Google settings, restrict the Search engine to only search for your one site.
+3. On WordPress dashboard, set API Key and Custom Search Engine ID in the plugin settings. `Dashboard > Settings > Reading > Search with Google Settings`.
+4. Select the search type from Custom Search Site Restricted JSON API or Custom Search API. (Refer [Notes](#notes) section for more details)
 
 = Notes =
 1. Custom Search Site Restricted JSON API can show only 100 search results for the query.
-1. A result page can have maximum of 10 results.
+2. A result page can have maximum of 10 results.
+3. Assistance for Custom Site Restricted Search JSON API is scheduled to cease as of December 18, 2024. [Read more](https://developers.google.com/custom-search/v1/site_restricted_api). Due to this modification, we are introducing an opt-in feature that enables the use of solely the Custom Search API, as opposed to the Custom Site-restricted Search API. This will allow you to continue using the Custom Search API after December 18, 2024.
 
 = BTW, We're Hiring! =
 
@@ -66,23 +69,25 @@ Once you're ready to send a pull request, please run through the following check
 
 == Changelog ==
 
-= 1.0 =
-* Initial release.
-
 = 1.1 =
-* Updated PHP code to be compatible with PHP 8.0+
+* Updated PHP code to be compatible with PHP 8.2
 * Fixed WordPress coding standards issues
 * Used VIP compatible code for WordPress VIP compatibility
+* Added support for the Custom JSON API
 * Added Deprecation notice for the Custom site-restricted JSON API
 
+= 1.0 =
+* Initial release.
+
 
 == Upgrade Notice ==
-
-= 1.0 =
-Initial release.
 
 = 1.1 =
-* Updated PHP code to be compatible with PHP 8.0+
+* Updated PHP code to be compatible with PHP 8.2
 * Fixed WordPress coding standards issues
 * Used VIP compatible code for WordPress VIP compatibility
+* Added support for the Custom JSON API
 * Added Deprecation notice for the Custom site-restricted JSON API
+
+= 1.0 =
+Initial release.

search-with-google.php

@@ -2,7 +2,7 @@
 /**
  * Plugin Name: Search with Google
  * Description: Replace WordPress default search with Google Custom Search results.
- * Version:     1.0
+ * Version:     1.1
  * Author:      rtCamp
  * Author URI:  https://rtCamp.com
  * License:     GPLv2 or later
@@ -20,6 +20,10 @@
 	define( 'SEARCH_WITH_GOOGLE_PATH', __DIR__ );
 }
 
+if ( ! defined( 'SEARCH_WITH_GOOGLE_URL' ) ) {
+	define( 'SEARCH_WITH_GOOGLE_URL', plugins_url( '', __FILE__ ) );
+}
+
 require_once SEARCH_WITH_GOOGLE_PATH . '/inc/helpers/autoloader.php';
 
 /**