first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/class-admin-tools.php

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+<?php
+
+class MC4WP_Admin_Tools {
+
+
+	 /**
+	 * @return string
+	 */
+	public function get_plugin_page() {
+		if ( empty( $_GET['page'] ) ) {
+			return '';
+		}
+
+		$prefix = 'mailchimp-for-wp';
+		$page   = ltrim( substr( $_GET['page'], strlen( $prefix ) ), '-' );
+		return $page;
+	}
+
+	/**
+	 * @param string $page
+	 *
+	 * @return bool
+	 */
+	public function on_plugin_page( $page = null ) {
+		// any settings page
+		if ( is_null( $page ) ) {
+			return isset( $_GET['page'] ) && strpos( $_GET['page'], 'mailchimp-for-wp' ) === 0;
+		}
+
+		// specific page
+		return $this->get_plugin_page() === $page;
+	}
+
+	/**
+	 * Does the logged-in user have the required capability?
+	 *
+	 * @return bool
+	 */
+	public function is_user_authorized() {
+		return current_user_can( $this->get_required_capability() );
+	}
+
+	/**
+	 * Get required capability to access settings page and view dashboard widgets.
+	 *
+	 * @return string
+	 */
+	public function get_required_capability() {
+		$capability = 'manage_options';
+
+		/**
+		 * Filters the required user capability to access the settings pages & dashboard widgets.
+		 *
+		 * @ignore
+		 * @deprecated 3.0
+		 */
+		$capability = apply_filters( 'mc4wp_settings_cap', $capability );
+
+		/**
+		 * Filters the required user capability to access the Mailchimp for WordPress' settings pages, view the dashboard widgets.
+		 *
+		 * Defaults to `manage_options`
+		 *
+		 * @since 3.0
+		 * @param string $capability
+		 * @see https://codex.wordpress.org/Roles_and_Capabilities
+		 */
+		$capability = (string) apply_filters( 'mc4wp_admin_required_capability', $capability );
+
+		return $capability;
+	}
+}