lsmi

<?php

/* Prevent activation and send a notice if other LSMI plugin is active. */
add_action( 'admin_notices', 'lsmi_admin_notice' );
add_action( 'network_admin_notices', 'lsmi_admin_notice' ); // also show message on multisite
function lsmi_admin_notice() {
	if( class_exists ( 'Location_Specific_Menu_Items_By_City' ) ){
		global $pagenow;
		if( $pagenow == 'plugins.php' ){
			deactivate_plugins ( 'lsmi-by-country/LSMI_Country.php' );
			if ( current_user_can( 'install_plugins' ) ) {
				echo '<div id="error" class="error notice is-dismissible"><p>Error. Please deactivate LSMI by City first and try again.</div>';
			}
		}
	}
}

class Location_Specific_Menu_Items_By_Country {
	private static $instance = null;
	public static function get_instance() {
		return null == self::$instance ? self::$instance = new self : self::$instance;
	}

	function __construct() {
		if( is_admin() ) {
			add_filter( 'wp_edit_nav_menu_walker', array( $this, 'edit_nav_menu_walker' ) );
			add_filter( 'wp_nav_menu_item_custom_fields', array( $this, 'option' ), 12, 2 );
			add_action( 'wp_update_nav_menu_item', array( $this, 'update_option_text' ), 10, 3 );
			add_action( 'wp_update_nav_menu_item', array( $this, 'update_option_hide_show' ), 10, 3 );
			add_action( 'delete_post', array( $this,'remove_visibility_meta' ), 1, 3);
			add_action( 'admin_enqueue_scripts', array( $this, 'lsmi_load_admin_script' ) );
		} else {
			add_filter( 'wp_get_nav_menu_items', array( $this, 'set_visibility' ), 10, 3 );
			add_action( 'init', array( $this, 'clear_gantry_menu_cache' ) );
		}
	}

	function lsmi_load_admin_script() {
		wp_register_style( 'chosencss', plugins_url( 'assets/chosen.min.css', __FILE__ ), true, '', 'all' );
		wp_register_script( 'chosenjs', plugins_url( 'assets/chosen.jquery.min.js', __FILE__ ), array( 'jquery' ), '', true );
		wp_enqueue_style( 'chosencss' );
		wp_enqueue_script( 'chosenjs' );
	}

	function edit_nav_menu_walker( $walker ) {
		require_once( dirname( __FILE__ ) . '/includes/walker-nav-menu-edit.php' );
		return 'LSMI_Walker_Nav_Menu_Edit';
	}

	function option( $fields, $item_id ) {
	    ob_start(); ?>
			<p class="field-visibility description description-wide">
				<label for="edit-menu-item-visibility-<?php echo $item_id; ?>">
					<?php echo 'LSMI by Country | <a href="http://#" target="_blank">LSMI by City</a>' ?>
				<script type="text/javascript">
				jQuery(document).ready(function($){ 
				    $(".chzn-select").chosen();
				});
				</script>
				<br/>
				<select name="menu-item-visibility[<?php echo $item_id; ?>]" id="edit-menu-item-visibility-<?php echo $item_id; ?>" class="chzn-select" multiple="true">
			
				    <option value="AF">Afghanistan</option>
				    <option value="AL">Albania</option>
				    <option value="DZ">Algeria</option>
				    <option value="AS">American Samoa</option>
				    <option value="AD">Andorra</option>
				    <option value="AO">Angola</option>
				    <option value="AI">Anguilla</option>
				    <option value="AQ">Antarctica</option>
				    <option value="AG">Antigua and Barbuda</option>
				    <option value="AR">Argentina</option>
				    <option value="AM">Armenia</option>
				    <option value="AW">Aruba</option>
				    <option value="AU">Australia</option>
				    <option value="AT">Austria</option>
				    <option value="AZ">Azerbaijan</option>
				    <option value="BS">Bahamas</option>
				    <option value="BH">Bahrain</option>
				    <option value="BD">Bangladesh</option>
				    <option value="BB">Barbados</option>
				    <option value="BY">Belarus</option>
				    <option value="BE">Belgium</option>
				    <option value="BZ">Belize</option>
				    <option value="BJ">Benin</option>
				    <option value="BM">Bermuda</option>
				    <option value="BT">Bhutan</option>
				    <option value="BO">Bolivia</option>
				    <option value="BA">Bosnia and Herzegowina</option>
				    <option value="BW">Botswana</option>
				    <option value="BV">Bouvet Island</option>
				    <option value="BR">Brazil</option>
				    <option value="IO">British Indian Ocean Territory</option>
				    <option value="BN">Brunei Darussalam</option>
				    <option value="BG">Bulgaria</option>
				    <option value="BF">Burkina Faso</option>
				    <option value="BI">Burundi</option>
				    <option value="KH">Cambodia</option>
				    <option value="CM">Cameroon</option>
				    <option value="CA">Canada</option>
				    <option value="CV">Cape Verde</option>
				    <option value="KY">Cayman Islands</option>
				    <option value="CF">Central African Republic</option>
				    <option value="TD">Chad</option>
				    <option value="CL">Chile</option>
				    <option value="CN">China</option>
				    <option value="CX">Christmas Island</option>
				    <option value="CC">Cocos (Keeling) Islands</option>
				    <option value="CO">Colombia</option>
				    <option value="KM">Comoros</option>
				    <option value="CG">Congo</option>
				    <option value="CD">Congo, the Democratic Republic of the</option>
				    <option value="CK">Cook Islands</option>
				    <option value="CR">Costa Rica</option>
				    <option value="CI">Cote d'Ivoire</option>
				    <option value="HR">Croatia (Hrvatska)</option>
				    <option value="CU">Cuba</option>
				    <option value="CY">Cyprus</option>
				    <option value="CZ">Czech Republic</option>
				    <option value="DK">Denmark</option>
				    <option value="DJ">Djibouti</option>
				    <option value="DM">Dominica</option>
				    <option value="DO">Dominican Republic</option>
				    <option value="TP">East Timor</option>
				    <option value="EC">Ecuador</option>
				    <option value="EG">Egypt</option>
				    <option value="SV">El Salvador</option>
				    <option value="GQ">Equatorial Guinea</option>
				    <option value="ER">Eritrea</option>
				    <option value="EE">Estonia</option>
				    <option value="ET">Ethiopia</option>
				    <option value="FK">Falkland Islands (Malvinas)</option>
				    <option value="FO">Faroe Islands</option>
				    <option value="FJ">Fiji</option>
				    <option value="FI">Finland</option>
				    <option value="FR">France</option>
				    <option value="FX">France, Metropolitan</option>
				    <option value="GF">French Guiana</option>
				    <option value="PF">French Polynesia</option>
				    <option value="TF">French Southern Territories</option>
				    <option value="GA">Gabon</option>
				    <option value="GM">Gambia</option>
				    <option value="GE">Georgia</option>
				    <option value="DE">Germany</option>
				    <option value="GH">Ghana</option>
				    <option value="GI">Gibraltar</option>
				    <option value="GR">Greece</option>
				    <option value="GL">Greenland</option>
				    <option value="GD">Grenada</option>
				    <option value="GP">Guadeloupe</option>
				    <option value="GU">Guam</option>
				    <option value="GT">Guatemala</option>
				    <option value="GN">Guinea</option>
				    <option value="GW">Guinea-Bissau</option>
				    <option value="GY">Guyana</option>
				    <option value="HT">Haiti</option>
				    <option value="HM">Heard and Mc Donald Islands</option>
				    <option value="VA">Holy See (Vatican City State)</option>
				    <option value="HN">Honduras</option>
				    <option value="HK">Hong Kong</option>
				    <option value="HU">Hungary</option>
				    <option value="IS">Iceland</option>
				    <option value="IN">India</option>
				    <option value="ID">Indonesia</option>
				    <option value="IR">Iran (Islamic Republic of)</option>
				    <option value="IQ">Iraq</option>
				    <option value="IE">Ireland</option>
				    <option value="IL">Israel</option>
				    <option value="IT">Italy</option>
				    <option value="JM">Jamaica</option>
				    <option value="JP">Japan</option>
				    <option value="JO">Jordan</option>
				    <option value="KZ">Kazakhstan</option>
				    <option value="KE">Kenya</option>
				    <option value="KI">Kiribati</option>
				    <option value="KP">Korea, Democratic People's Republic of</option>
				    <option value="KR">Korea, Republic of</option>
				    <option value="KW">Kuwait</option>
				    <option value="KG">Kyrgyzstan</option>
				    <option value="LA">Lao People's Democratic Republic</option>
				    <option value="LV">Latvia</option>
				    <option value="LB">Lebanon</option>
				    <option value="LS">Lesotho</option>
				    <option value="LR">Liberia</option>
				    <option value="LY">Libyan Arab Jamahiriya</option>
				    <option value="LI">Liechtenstein</option>
				    <option value="LT">Lithuania</option>
				    <option value="LU">Luxembourg</option>
				    <option value="MO">Macau</option>
				    <option value="MK">Macedonia, The Former Yugoslav Republic of</option>
				    <option value="MG">Madagascar</option>
				    <option value="MW">Malawi</option>
				    <option value="MY">Malaysia</option>
				    <option value="MV">Maldives</option>
				    <option value="ML">Mali</option>
				    <option value="MT">Malta</option>
				    <option value="MH">Marshall Islands</option>
				    <option value="MQ">Martinique</option>
				    <option value="MR">Mauritania</option>
				    <option value="MU">Mauritius</option>
				    <option value="YT">Mayotte</option>
				    <option value="MX">Mexico</option>
				    <option value="FM">Micronesia, Federated States of</option>
				    <option value="MD">Moldova, Republic of</option>
				    <option value="MC">Monaco</option>
				    <option value="MN">Mongolia</option>
				    <option value="MS">Montserrat</option>
				    <option value="MA">Morocco</option>
				    <option value="MZ">Mozambique</option>
				    <option value="MM">Myanmar</option>
				    <option value="NA">Namibia</option>
				    <option value="NR">Nauru</option>
				    <option value="NP">Nepal</option>
				    <option value="NL">Netherlands</option>
				    <option value="AN">Netherlands Antilles</option>
				    <option value="NC">New Caledonia</option>
				    <option value="NZ">New Zealand</option>
				    <option value="NI">Nicaragua</option>
				    <option value="NE">Niger</option>
				    <option value="NG">Nigeria</option>
				    <option value="NU">Niue</option>
				    <option value="NF">Norfolk Island</option>
				    <option value="MP">Northern Mariana Islands</option>
				    <option value="NO">Norway</option>
				    <option value="OM">Oman</option>
				    <option value="PK">Pakistan</option>
				    <option value="PW">Palau</option>
				    <option value="PA">Panama</option>
				    <option value="PG">Papua New Guinea</option>
				    <option value="PY">Paraguay</option>
				    <option value="PE">Peru</option>
				    <option value="PH">Philippines</option>
				    <option value="PN">Pitcairn</option>
				    <option value="PL">Poland</option>
				    <option value="PT">Portugal</option>
				    <option value="PR">Puerto Rico</option>
				    <option value="QA">Qatar</option>
				    <option value="RE">Reunion</option>
				    <option value="RO">Romania</option>
				    <option value="RU">Russian Federation</option>
				    <option value="RW">Rwanda</option>
				    <option value="KN">Saint Kitts and Nevis</option> 
				    <option value="LC">Saint LUCIA</option>
				    <option value="VC">Saint Vincent and the Grenadines</option>
				    <option value="WS">Samoa</option>
				    <option value="SM">San Marino</option>
				    <option value="ST">Sao Tome and Principe</option> 
				    <option value="SA">Saudi Arabia</option>
				    <option value="SN">Senegal</option>
				    <option value="SC">Seychelles</option>
				    <option value="SL">Sierra Leone</option>
				    <option value="SG">Singapore</option>
				    <option value="SK">Slovakia (Slovak Republic)</option>
				    <option value="SI">Slovenia</option>
				    <option value="SB">Solomon Islands</option>
				    <option value="SO">Somalia</option>
				    <option value="ZA">South Africa</option>
				    <option value="GS">South Georgia and the South Sandwich Islands</option>
				    <option value="ES">Spain</option>
				    <option value="LK">Sri Lanka</option>
				    <option value="SH">St. Helena</option>
				    <option value="PM">St. Pierre and Miquelon</option>
				    <option value="SD">Sudan</option>
				    <option value="SR">Suriname</option>
				    <option value="SJ">Svalbard and Jan Mayen Islands</option>
				    <option value="SZ">Swaziland</option>
				    <option value="SE">Sweden</option>
				    <option value="CH">Switzerland</option>
				    <option value="SY">Syrian Arab Republic</option>
				    <option value="TW">Taiwan, Province of China</option>
				    <option value="TJ">Tajikistan</option>
				    <option value="TZ">Tanzania, United Republic of</option>
				    <option value="TH">Thailand</option>
				    <option value="TG">Togo</option>
				    <option value="TK">Tokelau</option>
				    <option value="TO">Tonga</option>
				    <option value="TT">Trinidad and Tobago</option>
				    <option value="TN">Tunisia</option>
				    <option value="TR">Turkey</option>
				    <option value="TM">Turkmenistan</option>
				    <option value="TC">Turks and Caicos Islands</option>
				    <option value="TV">Tuvalu</option>
				    <option value="UG">Uganda</option>
				    <option value="UA">Ukraine</option>
				    <option value="AE">United Arab Emirates</option>
				    <option value="GB">United Kingdom</option>
				    <option value="US">United States</option>
				    <option value="UM">United States Minor Outlying Islands</option>
				    <option value="UY">Uruguay</option>
				    <option value="UZ">Uzbekistan</option>
				    <option value="VU">Vanuatu</option>
				    <option value="VE">Venezuela</option>
				    <option value="VN">Viet Nam</option>
				    <option value="VG">Virgin Islands (British)</option>
				    <option value="VI">Virgin Islands (U.S.)</option>
				    <option value="WF">Wallis and Futuna Islands</option>
				    <option value="EH">Western Sahara</option>
				    <option value="YE">Yemen</option>
				    <option value="YU">Yugoslavia</option>
				    <option value="ZM">Zambia</option>
				    <option value="ZW">Zimbabwe</option>
				</select>
					</p>
					<p class="field-visibility description description-wide">
					<input
					type="radio"
					id="edit-menu-item-visibility-<?php echo $item_id;?>"
					name="menu-item-show-hide[<?php echo $item_id; ?>]" 
					value="hide" <?php checked( get_post_meta( $item_id, 'hide_show', true ), 'hide', true ); ?>
					/>Hide from these countries.</br>
					<input
					type="radio"
					id="edit-menu-item-visibility-<?php echo $item_id; ?>"
					name="menu-item-show-hide[<?php echo $item_id; ?>]"
					value="show" <?php checked( get_post_meta( $item_id, 'hide_show', true ), 'show', true ); ?>
					/>Only show to these countries.</br>
				</label>
			</p>
		<?php
	    $fields[] = ob_get_clean();
	    return $fields;
	}
	/**
	 * Put locations in the database.
	 * @since 1.0.0
	 */
	function update_option_text( $menu_id, $menu_item_db_id, $args ) {
		$meta_value = get_post_meta( $menu_item_db_id, 'locations', true );
		$new_meta_value = stripcslashes( $_POST['menu-item-visibility'][$menu_item_db_id] );
		if( '' == $new_meta_value ) {
			delete_post_meta( $menu_item_db_id, 'locations', $meta_value );
		}
		elseif( $meta_value !== $new_meta_value ) {
			update_post_meta( $menu_item_db_id, 'locations', $new_meta_value );
		}
	}

	/**
	 * Put visibility settings in the database.
	 * @since 1.0.0
	 */
		function update_option_hide_show( $menu_id, $menu_item_db_id, $args ) {
		$meta_value = get_post_meta( $menu_item_db_id, 'hide_show', true );
		$new_meta_value = stripcslashes( $_POST['menu-item-show-hide'][$menu_item_db_id] );

		if( '' == $new_meta_value ) {
			delete_post_meta( $menu_item_db_id, 'hide_show', $meta_value );
		}
		elseif( $meta_value !== $new_meta_value ) {
			update_post_meta( $menu_item_db_id, 'hide_show', $new_meta_value );
		}
	}


	/**
	 * Check menu items for their visibility settings, compare with user's location, and show or hide them accordingly.
	 * @return array
	 * @since 1.0.0
	 */
	function set_visibility( $items, $menu, $args ) {
		if (!class_exists('GeoIP')) {
		include_once("geoip.inc");
		}

		if (empty($_SERVER["HTTP_X_FORWARDED_FOR"])) {
			$ip_address = $_SERVER["REMOTE_ADDR"];
		} else {
			$ip_address = $_SERVER["HTTP_X_FORWARDED_FOR"];
		}

		$GeoIPv4_file = plugin_dir_path( __FILE__ ) . 'data/GeoIPv4.dat';
		$GeoIPv6_file = plugin_dir_path( __FILE__ ) . 'data/GeoIPv6.dat';
		
		if (!filter_var($ip_address, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === FALSE) { 	
			if ( is_readable ( $GeoIPv4_file ) ) 
			$gi = \LSMIGeoIP\geoip_open( $GeoIPv4_file, GEOIP_STANDARD );
			$user_country = \LSMIGeoIP\geoip_country_code_by_addr($gi, $ip_address);
			\LSMIGeoIP\geoip_close($gi);
		} elseif (!filter_var($ip_address, FILTER_VALIDATE_IP,FILTER_FLAG_IPV6) === FALSE) {
			if ( is_readable ( $GeoIPv6_file ) )
			$gi = \LSMIGeoIP\geoip_open( $GeoIPv6_file, GEOIP_STANDARD );
			$user_country = \LSMIGeoIP\geoip_country_code_by_addr($gi, $ip_address);
			\LSMIGeoIP\geoip_close($gi);
		} else {
			$user_country = "Can't locate IP: " . $ip_address;				
		}		

		foreach( $items as $key => $item ) {
			$hidden_items = array();
			$item_parent = get_post_meta( $item->ID, '_menu_item_menu_item_parent', true );
			$locations_string = get_post_meta( $item->ID, 'locations', true );
			$locations_string = strtoupper($locations_string);
			$locations_array = explode(',', $locations_string);
			$locations_array_trimmed = array_map('trim', $locations_array);
			$locations_array_filtered = array_filter($locations_array_trimmed);
			$selected_locations = $locations_array_filtered;
			$hide_show = get_post_meta( $item->ID, 'hide_show', true );
				if( $hide_show == 'show' && in_array( $user_country, $selected_locations ) )
					$visible = true;
				elseif( $hide_show == 'show' && (!in_array( $user_country, $selected_locations ) ) )
					$visible = false;
				elseif( $hide_show == 'hide' && in_array( $user_country, $selected_locations ) )
					$visible = false;
				else
					$visible = true;
				if( ! $visible || isset( $hidden_items[$item_parent] ) ) { // also hide the children of hidden items
					unset( $items[$key] );
					$hidden_items[$item->ID] = '1';	
			}
		}

		return $items;
	}

	/**
	 * Remove the _menu_item_visibility meta when the menu item is removed
	 * @since 1.0.0
	 */
	function remove_visibility_meta( $post_id ) {
		if( is_nav_menu_item( $post_id ) ) {
			delete_post_meta( $post_id, 'locations' );
		}
	}

	/**
	 * Compatibility fix for Gantry Framework
	 *
	 * Clear the menu cache on each request to make sure
	 * visibility options are re-evaluated each time.
	 *
	 * @since 1.0.0
	 * @return void
	 */
	function clear_gantry_menu_cache() {
		if( class_exists( 'GantryWidgetMenu' ) ) {
			GantryWidgetMenu::clearMenuCache();
		}
	}
}
Location_Specific_Menu_Items_By_Country::get_instance();