phpmailer delivery improvments

bug fixes
add option to disable notifications
fix Invalid “Reply-To” e-mail address

1 files changed, 422 insertions, 0 deletions

diff --git a/Postman/Extensions/License/PostmanLicenseHandler.php b/Postman/Extensions/License/PostmanLicenseHandler.php
new file mode 100644
index 0000000..b24aa14
--- /dev/null
+++ b/Postman/Extensions/License/PostmanLicenseHandler.php
@@ -0,0 +1,422 @@
+<?php
+
+// Exit if accessed directly
+if ( ! defined( 'ABSPATH' ) ) exit;
+
+if ( ! class_exists( 'PostmanLicenseHandler' ) ) :
+
+
+class PostmanLicenseHandler {
+    private $file;
+    private $license;
+    private $license_data;
+    private $item_name;
+    private $item_id;
+    private $item_shortname;
+    private $version;
+    private $author;
+	private $api_url = 'http://localhost/psp/';
+
+
+	function __construct( $_file, $_item_name, $_version, $_author, $_optname = null, $_api_url = null, $_item_id = null ) {
+		$this->file = $_file;
+		$this->item_name = $_item_name;
+
+		if ( is_numeric( $_item_id ) ) {
+			$this->item_id = absint( $_item_id );
+		}
+
+		$this->item_shortname = $this->get_slug();
+		$this->version        = $_version;
+		$this->license        = trim( get_option( $this->item_shortname . '_license_key', '' ) );
+		$this->license_data        = get_option( $this->item_shortname . '_license_active', '' );
+		$this->author         = $_author;
+		$this->api_url        = is_null( $_api_url ) ? $this->api_url : $_api_url;
+
+		/**
+		 * Allows for backwards compatibility with old license options,
+		 * i.e. if the plugins had license key fields previously, the license
+		 * handler will automatically pick these up and use those in lieu of the
+		 * user having to reactive their license.
+		 */
+		if ( ! empty( $_optname ) ) {
+			$opt = get_option( $_optname, false );
+
+			if( isset( $opt ) && empty( $this->license ) ) {
+				$this->license = trim( $opt );
+			}
+		}
+
+		// Setup hooks
+		$this->includes();
+		$this->hooks();
+
+	}
+
+	/**
+	 * Include the updater class
+	 *
+	 * @access  private
+	 * @return  void
+	 */
+	private function includes() {
+		if ( ! class_exists( 'EDD_SL_Plugin_Updater' ) )  {
+			require_once 'EDD_SL_Plugin_Updater.php';
+		}
+	}
+
+	/**
+	 * Setup hooks
+	 *
+	 * @access  private
+	 * @return  void
+	 */
+	public function hooks() {
+
+		// Activate license key on settings save
+		add_action( 'admin_init', array( $this, 'activate_license' ) );
+
+		// Deactivate license key
+		add_action( 'admin_init', array( $this, 'deactivate_license' ) );
+
+		add_action( 'init', array( $this, 'cron' ), 20 );
+
+		// Check that license is valid once per week
+        add_action( 'admin_init', array( $this, 'validate_license' ) );
+
+		// Updater
+		add_action( 'admin_init', array( $this, 'auto_updater' ), 0 );
+
+		// Display notices to admins
+		add_action( 'admin_notices', array( $this, 'notices' ) );
+
+		add_action( 'in_plugin_update_message-' . plugin_basename( $this->file ), array( $this, 'plugin_row_license_missing' ), 10, 2 );
+	}
+
+    /**
+     * Auto updater
+     *
+     * @access  private
+     * @return  void
+     */
+    public function auto_updater() {
+
+        $args = array(
+            'version'   => $this->version,
+            'license'   => $this->license,
+            'author'    => $this->author,
+            'beta'      => function_exists( 'edd_extension_has_beta_support' ) && edd_extension_has_beta_support( $this->item_shortname ),
+        );
+
+        if( ! empty( $this->item_id ) ) {
+            $args['item_id']   = $this->item_id;
+        } else {
+            $args['item_name'] = $this->item_name;
+        }
+
+        // Setup the updater
+        $edd_updater = new EDD_SL_Plugin_Updater(
+            $this->api_url,
+            $this->file,
+            $args
+        );
+    }
+
+    public function cron() {
+        if ( ! wp_next_scheduled( $this->item_shortname . '_scheduled_events' ) ) {
+            wp_schedule_event( current_time( 'timestamp', true ), 'daily', $this->item_shortname . '_scheduled_events' );
+        }
+    }
+
+    public function get_slug() {
+        return preg_replace( '/[^a-zA-Z0-9_\s]/', '', str_replace( ' ', '_', strtolower( $this->item_name ) ) );
+    }
+
+	/**
+	 * Display help text at the top of the Licenses tag
+	 *
+	 * @since   2.5
+	 * @param   string   $active_tab
+	 * @return  void
+	 */
+	public function license_help_text( $active_tab = '' ) {
+
+		static $has_ran;
+
+		if( 'licenses' !== $active_tab ) {
+			return;
+		}
+
+		if( ! empty( $has_ran ) ) {
+			return;
+		}
+
+		echo '<p>' . sprintf(
+			__( 'Enter your extension license keys here to receive updates for purchased extensions. If your license key has expired, please <a href="%s" target="_blank">renew your license</a>.', 'easy-digital-downloads' ),
+			'http://docs.easydigitaldownloads.com/article/1000-license-renewal'
+		) . '</p>';
+
+		$has_ran = true;
+
+	}
+
+
+	/**
+	 * Activate the license key
+	 *
+	 * @return  void
+	 */
+	public function activate_license() {
+
+		if ( ! isset( $_POST['post_smtp_extension'][ $this->item_shortname . '_activate'] ) ) {
+			return;
+		}
+
+		if ( ! isset( $_REQUEST[ $this->item_shortname . '_license_key-nonce'] ) || ! wp_verify_nonce( $_REQUEST[ $this->item_shortname . '_license_key-nonce'], $this->item_shortname . '_license_key-nonce' ) ) {
+
+			return;
+
+		}
+
+		if ( ! current_user_can( 'manage_options' ) ) {
+			return;
+		}
+
+		if ( empty( $_POST['post_smtp_extension'][ $this->item_shortname . '_license_key'] ) ) {
+
+			delete_option( $this->item_shortname . '_license_active' );
+            delete_option( $this->item_shortname . '_license_key' );
+
+			return;
+
+		}
+
+		foreach ( $_POST as $key => $value ) {
+			if( false !== strpos( $key, 'license_key_deactivate' ) ) {
+				// Don't activate a key when deactivating a different key
+				return;
+			}
+		}
+
+		$details = get_option( $this->item_shortname . '_license_active' );
+
+		if ( is_object( $details ) && 'valid' === $details->license ) {
+			return;
+		}
+
+		$license = sanitize_text_field( $_POST['post_smtp_extension'][ $this->item_shortname . '_license_key'] );
+
+		if( empty( $license ) ) {
+			return;
+		}
+
+		// Data to send to the API
+		$api_params = array(
+			'edd_action' => 'activate_license',
+			'license'    => $license,
+			'item_name'  => urlencode( $this->item_name ),
+			'url'        => home_url()
+		);
+
+		if ( ! empty( $this->item_id ) ) {
+			$api_params['item_id'] = $this->item_id;
+		}
+
+		// Call the API
+		$response = wp_remote_post(
+			$this->api_url,
+			array(
+				'timeout'   => 15,
+				'sslverify' => false,
+				'body'      => $api_params
+			)
+		);
+
+		// Make sure there are no errors
+		if ( is_wp_error( $response ) ) {
+			return;
+		}
+
+		// Tell WordPress to look for updates
+		set_site_transient( 'update_plugins', null );
+
+		// Decode license data
+		$license_data = json_decode( wp_remote_retrieve_body( $response ) );
+
+		update_option( $this->item_shortname . '_license_active', $license_data );
+		update_option( $this->item_shortname . '_license_key', $license );
+
+		$slug = plugin_basename($this->file);
+        PostmanLicenseManager::get_instance()->add_extension($slug);
+
+	}
+
+
+	/**
+	 * Deactivate the license key
+	 *
+	 * @return  void
+	 */
+	public function deactivate_license() {
+
+        if ( ! isset( $_POST['post_smtp_extension'][ $this->item_shortname . '_deactivate'] ) ) {
+            return;
+        }
+
+		if ( ! isset( $_POST['post_smtp_extension'][ $this->item_shortname . '_license_key'] ) )
+			return;
+
+		if( ! wp_verify_nonce( $_REQUEST[ $this->item_shortname . '_license_key-nonce'], $this->item_shortname . '_license_key-nonce' ) ) {
+
+			wp_die( __( 'Nonce verification failed', 'easy-digital-downloads' ), __( 'Error', 'easy-digital-downloads' ), array( 'response' => 403 ) );
+
+		}
+
+		if( ! current_user_can( 'manage_options' ) ) {
+			return;
+		}
+
+		$license_key = sanitize_text_field( base64_decode( $_POST['post_smtp_extension'][ $this->item_shortname . '_license_key'] ) );
+
+		// Run on deactivate button press
+        // Data to send to the API
+        $api_params = array(
+            'edd_action' => 'deactivate_license',
+            'license'    => $license_key,
+            'item_name'  => urlencode( $this->item_name ),
+            'url'        => home_url()
+        );
+
+        if ( ! empty( $this->item_id ) ) {
+            $api_params['item_id'] = $this->item_id;
+        }
+
+        // Call the API
+        $response = wp_remote_post(
+            $this->api_url,
+            array(
+                'timeout'   => 15,
+                'sslverify' => false,
+                'body'      => $api_params
+            )
+        );
+
+        // Make sure there are no errors
+        if ( is_wp_error( $response ) ) {
+            return;
+        }
+
+        // Decode the license data
+        $license_data = json_decode( wp_remote_retrieve_body( $response ) );
+
+        delete_option( $this->item_shortname . '_license_active' );
+        delete_option( $this->item_shortname . '_license_key' );
+
+        $slug = plugin_basename($this->file);
+        PostmanLicenseManager::get_instance()->remove_extension($slug);
+
+	}
+
+	public function validate_license() {
+        if ( false === ( $cron_data = get_transient( $this->item_shortname . '_cron' ) ) ) {
+            $this->license_check();
+
+            set_transient( $this->item_shortname . '_cron', true, rand( 12, 48 ) *  HOUR_IN_SECONDS );
+        }
+    }
+
+
+	/**
+	 * Check if license key is valid once per week
+	 *
+	 * @since   2.5
+	 * @return  void
+	 */
+	public function license_check() {
+
+		// data to send in our API request
+		$api_params = array(
+			'edd_action'=> 'check_license',
+			'license' 	=> $this->license,
+			'item_name' => urlencode( $this->item_name ),
+			'url'       => home_url()
+		);
+
+		// Call the API
+		$response = wp_remote_post(
+			$this->api_url,
+			array(
+				'timeout'   => 15,
+				'sslverify' => false,
+				'body'      => $api_params
+			)
+		);
+
+		// make sure the response came back okay
+		if ( is_wp_error( $response ) ) {
+			return false;
+		}
+
+		$license_data = json_decode( wp_remote_retrieve_body( $response ) );
+
+		update_option( $this->item_shortname . '_license_active', $license_data );
+
+	}
+
+
+	/**
+	 * Admin notices for errors
+	 *
+	 * @return  void
+	 */
+	public function notices() {
+
+		$showed_invalid_message = null;
+
+		if( empty( $this->license ) ) {
+			return;
+		}
+
+		if( ! current_user_can( 'manage_options' ) ) {
+			return;
+		}
+
+		$messages = array();
+
+		$license = get_option( $this->item_shortname . '_license_active' );
+
+		if( is_object( $license ) && 'valid' !== $license->license && empty( $showed_invalid_message ) ) {
+
+			if( isset( $_GET['page'] ) && 'post-smtp-extensions' === $_GET['page'] ) {
+
+				$messages[] = sprintf(
+					__( '%s has invalid or expired license key for Post SMTP.'),
+					'<strong>' . $this->item_name . '</strong>'
+				);
+
+				$showed_invalid_message = true;
+
+			}
+
+		}
+
+		if( ! empty( $messages ) ) {
+
+			foreach( $messages as $message ) {
+
+				echo '<div class="error">';
+					echo '<p>' . $message . '</p>';
+				echo '</div>';
+
+			}
+
+		}
+
+	}
+
+	public function is_licensed() {
+	    return is_object($this->license_data) && 'valid' === $this->license_data->license;
+    }
+}
+
+endif; // end class_exists check