wpwsl_core.php

<?php
/**
 * Plugin Name: WeChat Subscribers Lite
 * Plugin URI: http://www.imredy.com/wp_wechat/
 * Description: 轻便易用的微信(weixin)公众平台订阅号管理工具。Light weight WeChat (Subscribers) public platform management tool.
 * Version: 1.6.2
 * Author: Redy Ru
 * Author URI: http://www.imredy.com/
 * License: GPLv2 or later
 * Text Domain: WPWSL
 * Domain Path: /languages
 */

if ( ! defined( 'ABSPATH' ) ) exit;

define('WPWSL_PLUGIN_URL', plugins_url('', __FILE__));
define('WPWSL_GENERAL_PAGE', 'wpwsl-general-page');
define('WPWSL_HISTORY_PAGE', 'wpwsl-history-page');
define('WPWSL_SETTINGS_PAGE', 'wpwsl-settings-page');
define('WPWSL_SETTINGS_OPTION', 'wpwsl_settings_option');
define('SELECT_ROWS_AMOUNT', 100);
define('SYNC_TITLE_LIMIT', 50);
define('SYNC_CONTENT_LIMIT', 300);
define('SYNC_EXCERPT_LIMIT', 100);
define('MAX_SEARCH_LIMIT', 6);
define('DB_TABLE_WPWSL_HISTORY', 'wechat_subscribers_lite_history');

//utils
function trim_words($str,$limit,$suffix='...',$db_charset=DB_CHARSET,$strip_tags=true){
    if($strip_tags){
        $str=strip_tags($str);
    }
    if(strpos($db_charset, "utf8") !== false 
    || strpos($db_charset, "utf8") !== false){
      $db_charset="utf8";
    }
    $new_str = mb_substr($str,0,$limit,$db_charset);
    $new_str = mb_strlen($str,$db_charset)>$limit ? $new_str.$suffix:$new_str;
    return $new_str;
}

//Interface
$options=get_option(WPWSL_SETTINGS_OPTION);
global $token;
$token=isset($options['token'])?$options['token']:'';

add_action('parse_request', 'load_interface');
function load_interface(){
    global $token;
    if($token!='' && isset($_GET[$token])){
    	require( 'interface.php' );
    }
}

//Languages
add_action('plugins_loaded', 'load_languages_file');
function load_languages_file(){
	load_plugin_textdomain( 'WPWSL', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
}
//create db table wechat_subscribers_lite_messages
add_action( 'plugins_loaded', 'create_history_table' );
function create_history_table(){
    global $wpdb;
    $table_name =DB_TABLE_WPWSL_HISTORY; 
    $sql = "CREATE TABLE $table_name (
    id bigint(20) NOT NULL KEY AUTO_INCREMENT,  
    openid   varchar(100) NOT NULL,
    keyword  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
    is_match char(1)   NOT NULL,
    time     datetime  NOT NULL
    );";
    
    require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
    dbDelta($sql);
}

//Setup wechat image size
function set_wechat_img_size(){
	add_image_size( 'sup_wechat_big'  , 360,200, true );
	add_image_size( 'sup_wechat_small', 200,200, true );
}
add_action( 'after_setup_theme','set_wechat_img_size'); 

function sup_wechat_custom_sizes( $sizes ) {
    return array_merge($sizes, array(
        'sup_wechat_big' => __('WeChat big image','WPWSL'),
        'sup_wechat_small' => __('WeChat small image','WPWSL')
    ));
}
add_filter( 'image_size_names_choose', 'sup_wechat_custom_sizes' );



//Setup Admin
add_action('_admin_menu', 'wpwsl_admin_setup');
function wpwsl_admin_setup(){
     global $user_level;
     if($user_level>=5){
    	require_once( 'posttype_wpwsl_template.php' );
    	
    	$page_title=__('WeChat Subscribers Lite', 'WPWSL');
    	$menu_title=__('WeChat Subscribers Lite', 'WPWSL');
    	$capability='edit_pages';
    	$menu_slug=WPWSL_GENERAL_PAGE;
    	$function='';
    	$icon_url=WPWSL_PLUGIN_URL.'/img/wpwsl_icon_16.png';
    	add_object_page( $page_title, $menu_title, $capability, $menu_slug, $function, $icon_url );
    
    	require_once( 'class-wpwsl-settings.php' );
    	require_once( 'class-wpwsl-general.php' );
    	require_once( 'class-wpwsl-history.php' );
    	//Settings
    	$settingObject=WPWSL_Settings::get_instance();
    	//General
    	$generalObject=WPWSL_General::get_instance();
    	//History
    	$hitsotryObject=WPWSL_History::get_instance();
    }
}

//AJAX handle
//Safe Redirect
add_action('admin_init', 'ajax_handle', 999);
function ajax_handle(){
    require_once( 'ajax_request_handle.php');
}

//Safe Redirect
add_action('admin_init', 'safe_redirect', 999);
function safe_redirect(){
	if ( isset($_GET['_wp_http_referer'])){
		wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce' ), stripslashes( $_SERVER['REQUEST_URI'] ) ) );
	}

}
//Scripts
add_action('admin_print_scripts', 'custom_admin_scripts');
//add custom upload jquery support.
function custom_admin_scripts() {
	wp_enqueue_script('jquery');
	wp_enqueue_media();
	wp_register_script('custom-upload', WPWSL_PLUGIN_URL.'/js/custom_upload.js', array('jquery','media-upload','thickbox'),"2.0");
	wp_enqueue_script('custom-upload');
	wp_register_script('modal', WPWSL_PLUGIN_URL.'/js/modal.js',array(),"2.0");
	wp_enqueue_script('modal');
}
// Add settings link on plugin page
function wpwsl_plugin_settings_link($links) {
  $settings_link = '<a href="'.menu_page_url( WPWSL_SETTINGS_PAGE,false).'">'.__('Settings','WPWSL').'</a>';
  array_unshift($links, $settings_link);
  return $links;
}

$plugin = plugin_basename(__FILE__);
add_filter("plugin_action_links_$plugin", 'wpwsl_plugin_settings_link' );
?>