191 test helper php 81 improvements

.gitignore

@@ -1,6 +1,7 @@
 /vendor/
 /node_modules/
 .idea/
+.vscode/
 artifact.zip
 /artifact/
 yarn-error.log
@@ -16,4 +17,4 @@ phpcs.xml
 [Tt]humbs.db
 [Dd]esktop.ini
 *.DS_store
-.DS_store?
+.DS_store?

src/domain-dropdown.php

@@ -70,9 +70,13 @@ public function get_controls() {
 	 * @return void
 	 */
 	public function handle_submit() {
-		if ( \check_admin_referer( 'yoast_seo_domain_dropdown' ) !== false ) {
-			// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged -- This deprecation will be addressed later.
-			$this->option->set( 'myyoast_test_domain', \filter_input( \INPUT_POST, 'myyoast_test_domain', @\FILTER_SANITIZE_STRING ) );
+		if ( ! \check_admin_referer( 'yoast_seo_domain_dropdown' ) && ! isset( $_POST['myyoast_test_domain'] ) ) {
+			return;
+		}
+
+		if ( isset( $_POST['myyoast_test_domain'] ) && \is_string( $_POST['myyoast_test_domain'] ) ) {
+			$myyoast_test_domain = \sanitize_text_field( \wp_unslash( $_POST['myyoast_test_domain'] ) );
+			$this->option->set( 'myyoast_test_domain', $myyoast_test_domain );
 		}
 
 		\wp_safe_redirect( \self_admin_url( 'tools.php?page=' . \apply_filters( 'Yoast\WP\Test_Helper\admin_page', '' ) ) );

src/downgrader.php

@@ -54,11 +54,12 @@ public function handle_submit() {
 		if ( ! \check_admin_referer( 'yoast_rollback_control' ) ) {
 			return;
 		}
-		if ( ! isset( $_POST['target_version'] ) ) {
+		if ( ! isset( $_POST['target_version'] ) || ! \is_string( $_POST['target_version'] ) ) {
 			return;
 		}
 
-		$target_version = \filter_var( \wp_unslash( $_POST['target_version'] ) );
+		$target_version = \sanitize_text_field( \wp_unslash( $_POST['target_version'] ) );
+
 		try {
 			$this->downgrade( $target_version );
 			\do_action(

src/inline-script.php

@@ -74,17 +74,22 @@ public function get_controls() {
 	}
 
 	/**
-	 * Handles the form submit.
+	 * Handles the form submit for adding inline script.
 	 *
 	 * @return void
 	 */
 	public function handle_submit() {
 		if ( \check_admin_referer( 'yoast_seo_test_inline_script' ) !== false ) {
 			$this->option->set( 'add_inline_script', isset( $_POST['add_inline_script'] ) );
-			// phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged -- These deprecations will be addressed later.
-			$this->option->set( 'inline_script_handle', \filter_input( \INPUT_POST, 'inline_script_handle', @\FILTER_SANITIZE_STRING ) );
-			$this->option->set( 'inline_script', \filter_input( \INPUT_POST, 'inline_script', @\FILTER_SANITIZE_STRING ) );
-			// phpcs:enable
+
+			if ( isset( $_POST['inline_script_handle'] ) && \is_string( $_POST['inline_script_handle'] ) ) {
+				$inline_script_handle = \sanitize_text_field( \wp_unslash( $_POST['inline_script_handle'] ) );
+				$this->option->set( 'inline_script_handle', $inline_script_handle );
+			}
+			if ( isset( $_POST['inline_script'] ) && \is_string( $_POST['inline_script'] ) ) {
+				$inline_script = \sanitize_text_field( \wp_unslash( $_POST['inline_script'] ) );
+				$this->option->set( 'inline_script', $inline_script );
+			}
 		}
 
 		\wp_safe_redirect( \self_admin_url( 'tools.php?page=' . \apply_filters( 'Yoast\WP\Test_Helper\admin_page', '' ) ) );

src/plugin-toggler.php

@@ -177,9 +177,13 @@ public function ajax_toggle_plugin() {
 		$response = [];
 
 		// If nonce is valid.
-		if ( $this->verify_nonce() ) {
-			$group  = \filter_input( \INPUT_GET, 'group' );
-			$plugin = \filter_input( \INPUT_GET, 'plugin' );
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- The nonce is verified in a different method.
+		if ( $this->verify_nonce() && isset( $_GET['group'] ) && \is_string( $_GET['group'] && isset( $_GET['plugin'] ) && \is_string( $_GET['plugin'] ) ) ) {
+
+			// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- The nonce is verified above.
+			$group = \sanitize_text_field( \wp_unslash( $_GET['group'] ) );
+			// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- The nonce is verified above.
+			$plugin = \sanitize_text_field( \wp_unslash( $_GET['plugin'] ) );
 
 			// First deactivate the current plugin.
 			$this->deactivate_plugin_group( $group );
@@ -421,11 +425,10 @@ private function deactivate_plugin_group( $group ) {
 	 * @return bool True if verified.
 	 */
 	private function verify_nonce() {
-		// Get the nonce value.
-		$ajax_nonce = \filter_input( \INPUT_GET, 'ajax_nonce' );
 
 		// If nonce is valid return true.
-		if ( \wp_verify_nonce( $ajax_nonce, 'yoast-plugin-toggle' ) ) {
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized, WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- The nonce does not need sanitization.
+		if ( isset( $_GET['ajax_nonce'] ) && \wp_verify_nonce( $_GET['ajax_nonce'], 'yoast-plugin-toggle' ) ) {
 			return true;
 		}
 	}

src/schema.php

@@ -142,11 +142,17 @@ public function handle_submit() {
 			$this->option->set( 'enable_schema_endpoint', isset( $_POST['enable_schema_endpoint'] ) );
 		}
 
-		$is_needed_breadcrumb = $this->validate_submit( \filter_input( \INPUT_POST, 'is_needed_breadcrumb' ) );
-		$is_needed_webpage    = $this->validate_submit( \filter_input( \INPUT_POST, 'is_needed_webpage' ) );
+		if ( isset( $_POST['is_needed_breadcrumb'] ) ) {
+			// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized,WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- validation is done in validate_submit.
+			$validated_is_needed_breadcrumb = $this->validate_submit( $_POST['is_needed_breadcrumb'] );
+			$this->option->set( 'is_needed_breadcrumb', $validated_is_needed_breadcrumb );
+		}
 
-		$this->option->set( 'is_needed_breadcrumb', $is_needed_breadcrumb );
-		$this->option->set( 'is_needed_webpage', $is_needed_webpage );
+		if ( isset( $_POST['is_needed_webpage'] ) ) {
+			// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized,WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- validation is done in validate_submit.
+			$validated_is_needed_webpage = $this->validate_submit( $_POST['is_needed_webpage'] );
+			$this->option->set( 'is_needed_webpage', $validated_is_needed_webpage );
+		}
 
 		\wp_safe_redirect( \self_admin_url( 'tools.php?page=' . \apply_filters( 'Yoast\WP\Test_Helper\admin_page', '' ) ) );
 	}

src/xml-sitemaps.php

@@ -85,7 +85,7 @@ public function handle_submit() {
 			$this->option->set( 'disable_xml_sitemap_cache', isset( $_POST['disable_xml_sitemap_cache'] ) );
 			$xml_sitemap_entries = null;
 			if ( isset( $_POST['xml_sitemap_entries'] ) ) {
-				$xml_sitemap_entries = \filter_input( \INPUT_POST, 'xml_sitemap_entries', \FILTER_SANITIZE_NUMBER_INT );
+				$xml_sitemap_entries = \intval( \wp_unslash( $_POST['xml_sitemap_entries'] ) );
 			}
 			$this->option->set( 'xml_sitemap_entries', $xml_sitemap_entries );
 		}