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<?php
/**
* Plugin Name: wp-forecast
* Plugin URI: http://www.tuxlog.de
* Description: wp-forecast is a highly customizable plugin for WordPress, showing weather-data from Open-Meteo or OpenWeathermMap.
* Version: 9.8
* Author: Hans Matzen
* Author URI: http://www.tuxlog.de
* License: GPLv2
* License URI: https://www.gnu.org/licenses/gpl-2.0.html
* Domain Path: lang
* Text Domain: wp-forecast
*
* @package wp-forecast
*/
/**
* Copyright 2006-2025 Hans Matzen
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
//
// maximal number of widgets to use.
//
$wpf_maxwidgets = 8;
/*
---------- no parameters to change after this point --------------------
*/
// define path to wp-forecast plugin.
define( 'WPF_PATH', plugin_dir_path( __FILE__ ) );
// OpenWeathermap functions.
require_once 'func-openweathermap.php';
require_once 'func-openweathermap-v2.php';
// Open-Meteo functions.
require_once 'func-openmeteo.php';
// OpenUV data functions.
require_once 'func-openuv.php';
// ipstack functions.
require_once 'func-ipstack.php';
// generic functions.
require_once 'funclib.php';
// include setup functions.
require_once 'wpf-setup.php';
// include admin options page.
require_once 'wp-forecast-admin.php';
// display functions.
require_once 'wp-forecast-show.php';
// shortcodes.
require_once 'shortcodes.php';
// support for WordPress autoupdate.
require_once 'wpf-autoupdate.php';
// virtual page class.
require_once 'class-wpf-virtualpage.php';
global $blog_id;
/**
* Set cache with weather data for current parameters
* a wrapper function called via the init hook.
*/
function wp_forecast_init() {
$count = (int) wpf_get_option( 'wp-forecast-count' );
$weather = array();
for ( $i = 0;$i < $count;$i++ ) {
$wpfcid = get_widget_id( $i );
$wpf_vars = get_wpf_opts( $wpfcid );
// use visitors location for weather and UV.
if ( isset( $wpf_vars['visitorlocation'] ) && $wpf_vars['visitorlocation'] ) {
// get users ip address.
$vip = ipstack_get_visitor_ip();
// get location information about ip address.
$vloc = ipstack_get_data( wpf_get_option( 'wp-forecast-ipstackapikey' ), $vip );
// find matching locations from open-meteo.
// search locations for openmeteo.
$openmeteo_loc = get_loclist( $wpf_vars['OPENMETEO_LOC_URI'], ( ! isset( $vloc['city'] ) ? '' : $vloc['city'] ) );
// guess the locations which might be correct matching the country.
$locations = array();
// prefilter list of found locations to reduce runtime.
foreach ( $openmeteo_loc as $al ) {
if ( strpos( $al['country'], $vloc['country_name'] ) !== false ) {
$locations[] = $al;
}
}
if ( count( $locations ) == 1 ) {
// if there is only one location in the array take this one.
$wpf_vars['location'] = $locations[0]['name'];
$wpf_vars['locname'] = $locations[0]['name'];
$wpf_vars['loclatitude'] = $locations[0]['latitude'];
$wpf_vars['loclongitude'] = $locations[0]['longitude'];
} else {
// get the weather data of all the weather locations in the array and find the best match on lat and lon.
$ldist = 99000.0;
$lat1 = ( ! isset( $vloc['latitude'] ) ? '' : $vloc['latitude'] );
$lon1 = ( ! isset( $vloc['longitude'] ) ? '' : $vloc['longitude'] );
$tloc = '';
$tname = '';
foreach ( $locations as $ll ) {
$lat2 = $ll['latitude'];
$lon2 = $ll['longitude'];
$cdist = distanceCalculation( $lat1, $lon1, $lat2, $lon2 );
if ( $cdist < $ldist ) {
$ldist = $cdist;
$tloc = $ll['name'];
$tname = $ll['name'];
$tlat = $ll['latitude'];
$tlon = $ll['longitude'];
}
}
if ( '' != $tloc ) {
$wpf_vars['locname'] = $tname;
$wpf_vars['location'] = $tloc;
$wpf_vars['loclatitude'] = $tlan;
$wpf_vars['loclongitude'] = $tlon;
} else {
// nothing found set default values.
$wpf_vars['location'] = 'Berlin Alexanderplatz';
$wpf_vars['locname'] = 'Berlin Alexanderplatz';
$wpf_vars['loclatitude'] = '52.521918';
$wpf_vars['loclongitude'] = '13.413215';
}
}
// make sure weather data is updated.
$wpf_vars['expire'] = 0;
// update wpf_vars in case we changed lat and lon.
wpf_update_option( 'wp-forecast-opts' . $wpfcid, serialize( $wpf_vars ) );
}
// check if we have to fetch the weather data or if we can use the cache.
if ( $wpf_vars['expire'] < time() ) {
switch ( $wpf_vars['service'] ) {
case 'openweathermap':
$w = openweathermap_get_weather_v2( $wpf_vars['OPENWEATHERMAP_BASE_URI'], $wpf_vars['apikey1'], $wpf_vars['loclatitude'], $wpf_vars['loclongitude'], $wpf_vars['metric'] );
$weather = openweathermap_get_data_v2( $w, $wpf_vars );
break;
case 'openweathermap3':
$w = openweathermap_get_weather( $wpf_vars['OPENWEATHERMAP_BASE_URI_V3'], $wpf_vars['apikey1'], $wpf_vars['loclatitude'], $wpf_vars['loclongitude'], $wpf_vars['metric'] );
$weather = openweathermap_get_data( $w, $wpf_vars );
break;
case 'openmeteo':
$w = openmeteo_get_weather( $wpf_vars['OPENMETEO_BASE_URI'], $wpf_vars['loclatitude'], $wpf_vars['loclongitude'], $wpf_vars['metric'] );
$weather = openmeteo_get_data( $w, $wpf_vars );
break;
}
// get OpenUV data if wanted.
if ( isset( $wpf_vars['ouv_apikey'] ) && trim( $wpf_vars['ouv_apikey'] ) != '' ) {
$ouv = openuv_get_data( $wpf_vars['ouv_apikey'], $weather['lat'], $weather['lon'] );
if ( is_wp_error( $ouv ) ) {
$weather['openuv'] = '';
$weather['failure'] = $ouv->get_error_message();
} else {
$weather['openuv'] = $ouv;
}
}
// store weather to database and set expire time.
// if the current data wasnt available use old data.
if ( count( $weather ) > 0 ) {
wpf_update_option( 'wp-forecast-cache' . $wpfcid, serialize( $weather ) );
if ( empty( $weather['failure'] ) || '' == $weather['failure'] ) {
wpf_update_option( 'wp-forecast-expire' . $wpfcid, time() + $wpf_vars['refresh'] );
} else {
wpf_update_option( 'wp-forecast-expire' . $wpfcid, 0 );
}
}
}
}
// javascript hinzufügen fuer ajax widget.
if ( ! is_admin() && get_option( 'wpf_sem_ajaxload' ) > 0 ) {
wp_enqueue_script( 'wpf_update', plugins_url( 'wpf_update.js', __FILE__ ), array( 'jquery' ), '9999' );
}
// javascript hinzufügen für suche im admin dialog.
if ( is_admin() ) {
wp_enqueue_script( 'wp-color-picker' );
wp_enqueue_script( 'wp-forecast-search', plugins_url( 'wp-forecast-admin.js', __FILE__ ), array( 'jquery' ), '9999' );
}
// add css attribute display to the list of safe css styles for pulldown widget.
add_filter(
'safe_style_css',
function( $styles ) {
$styles[] = 'display';
return $styles;
}
);
}
/**
* This function is called from your template
* to insert your weather data at the place you want it to be
* support to select language on a per call basis from Robert Lang.
*
* @param array $args Default parameters.
* @param string $wpfcid The Widget ID.
* @param string $language_override ISO Code of the language.
*/
function wp_forecast_widget( $args = array(), $wpfcid = 'A', $language_override = null ) {
if ( '?' == $wpfcid ) {
$wpf_vars = get_wpf_opts( 'A' );
} else {
$wpf_vars = get_wpf_opts( $wpfcid );
}
if ( ! empty( $language_override ) ) {
$wpf_vars['wpf_language'] = $language_override;
}
if ( '?' == $wpfcid ) {
$weather = maybe_unserialize( wpf_get_option( 'wp-forecast-cacheA' ) );
} else {
$weather = maybe_unserialize( wpf_get_option( 'wp-forecast-cache' . $wpfcid ) );
}
show( $wpfcid, $args, $wpf_vars );
}
/**
* This is the wrapper function for displaying from sidebar.php
* and not as a widget. since the parameters are different we need this.
*
* @param string $wpfcid The Widget ID.
* @param string $language_override ISO Code of the language.
*/
function wp_forecast( $wpfcid = 'A', $language_override = null ) {
wp_forecast_widget( array(), $wpfcid, $language_override );
}
/**
* A function to show a range of widgets at once.
*
* @param int $from Lowest widget number to display.
* @param int $to Highest widget number to display.
* @param int $numpercol Number of widgets per column.
* @param string $language_override ISO Code of the language.
*/
function wp_forecast_range( $from = 0, $to = 0, $numpercol = 1, $language_override = null ) {
global $wpf_maxwidgets;
$wcount = 1;
// check min and max limit.
if ( $from < 0 ) {
$from = 0;
}
if ( $to > $wpf_maxwidgets ) {
$to = $wpf_maxwidgets;
}
// output table header.
echo '<table><tr>';
// out put widgets in a table.
for ( $i = $from;$i <= $to;$i++ ) {
if ( 1 == $wcount % $numpercol ) {
echo '<tr>';
}
echo '<td>';
wp_forecast( get_widget_id( $i ), $language_override );
echo '</td>';
if ( ( 0 == $wcount % $numpercol ) && ( $i < $to ) ) {
echo '</tr>';
}
++$wcount;
}
// output table footer.
echo '</tr></table>';
}
/**
* A function to show a set of widgets at once.
*
* @param array $wset Array with numbers of widgets to display.
* @param int $numpercol Number of widgets per column.
* @param string $language_override ISO Code of the language.
*/
function wp_forecast_set( $wset, $numpercol = 1, $language_override = null ) {
global $wpf_maxwidgets;
$wcount = 1;
$wset_max = count( $wset ) - 1;
// output table header.
echo '<table><tr>';
// out put widgets in a table.
for ( $i = 0;$i <= $wset_max;$i++ ) {
if ( 1 == $wcount % $numpercol ) {
echo '<tr>';
}
echo '<td>';
wp_forecast( $wset[ $i ], $language_override );
echo '</td>';
if ( ( 0 == $wcount % $numpercol ) && ( $i < $wset_max ) ) {
echo '</tr>';
}
++$wcount;
}
// output table footer.
echo '</tr></table>';
}
/**
* Returns the widget data as an array.
*
* @param string $wpfcid The Widget ID.
* @param string $language_override ISO Code of the language.
*/
function wp_forecast_data( $wpfcid = 'A', $language_override = null ) {
$wpf_vars = get_wpf_opts( $wpfcid );
if ( ! empty( $language_override ) ) {
$wpf_vars['wpf_language'] = $language_override;
}
$w = maybe_unserialize( wpf_get_option( 'wp-forecast-cache' . $wpfcid ) );
$weather_arr = array();
// read service dependent weather data.
switch ( $wpf_vars['service'] ) {
case 'openweathermap':
$weather_arr = openweathermap_forecast_data_v2( $wpfcid, $language_override );
break;
case 'openweathermap3':
$weather_arr = openweathermap_forecast_data( $wpfcid, $language_override );
break;
case 'openmeteo':
$weather_arr = openmeteo_forecast_data( $wpfcid, $language_override );
break;
}
// add openuv data to weather_arr.
if ( is_array( $w ) && array_key_exists( 'openuv', $w ) ) {
$weather_arr['openuv'] = $w['openuv'];
} else {
$weather_arr['openuv'] = array();
}
return $weather_arr;
}
/**
* Register the wp-forecast widget
*/
function reg_wpf_widget() {
return register_widget( 'wpf_widget' );
}
/**
* Register the UV Widget
*/
function reg_wpf_uv_widget() {
return register_widget( 'WpfUvWidget' );
}
/**
* Init the wp-forecast widgets.
*/
function widget_wp_forecast_init() {
global $wp_version,$wpf_maxwidgets, $wpf_lang_dict;
// include widget class.
require_once 'class-wpf-widget.php';
require_once 'class-wpfuvwidget.php';
$count = (int) wpf_get_option( 'wp-forecast-count' );
// check for widget support.
if ( ! function_exists( 'register_sidebar_widget' ) ) {
return;
}
// add fetch weather data to init the cache before any headers are sent.
add_action( 'init', 'wp_forecast_init' );
add_action( 'admin_init', 'wp_forecast_admin_init' );
// add css.
add_action( 'wp_enqueue_scripts', 'wp_forecast_css' );
for ( $i = 0;$i <= $wpf_maxwidgets;$i++ ) {
$wpfcid = get_widget_id( $i );
// register our widget and add a control.
// translators: %s is for the Widget ID.
$name = sprintf( __( 'wp-forecast %s' ), $wpfcid );
$id = "wp-forecast-$wpfcid";
// translators: %s is for the widget ID.
$uvname = sprintf( __( 'wp-forecast-uv %s' ), $wpfcid );
$uvid = "wp-forecast-uv-$wpfcid";
// add widget.
add_action( 'widgets_init', 'reg_wpf_widget' );
add_action( 'widgets_init', 'reg_wpf_uv_widget' );
wp_unregister_sidebar_widget( $i >= $count ? 'wp_forecast_widget' . $wpfcid : '' );
wp_register_widget_control(
$id,
$name,
$i < $count ? 'wpf_admin_hint' : '',
array(
'width' => 300,
'height' => 150,
)
);
wp_unregister_widget_control( $i >= $count ? 'wpf_admin_hint' . $wpfcid : '' );
}
}
/**
* Filters the REQUEST_URI for virtual page slug
* to show weather in an iframe.
*/
function wpf_filter_url() {
$url = ( isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '' );
$url = trim( parse_url( $url, PHP_URL_PATH ), '/' );
// determine if it is a wpf virtual page call.
if ( strpos( $url, 'wp-forecast-direct' ) !== false ) {
$wpfcid = ( isset( $_GET['wpfcid'] ) ? sanitize_text_field( wp_unslash( $_GET['wpfcid'] ) ) : 'A' );
$language_override = ( isset( $_GET['language_override'] ) ? sanitize_text_field( wp_unslash( $_GET['language_override'] ) ) : '' );
$header = ( isset( $_GET['header'] ) ? sanitize_text_field( wp_unslash( $_GET['header'] ) ) : '' );
$selector = ( isset( $_GET['selector'] ) ? sanitize_text_field( wp_unslash( $_GET['selector'] ) ) : '' );
if ( '1' == $selector ) {
$selector = '?';
}
$args = array();
$wpf_vars = get_wpf_opts( $wpfcid );
if ( ! empty( $language_override ) ) {
$wpf_vars['wpf_language'] = $language_override;
}
$weather = maybe_unserialize( wpf_get_option( 'wp-forecast-cache' . $wpfcid ) );
// only show weather html without page or header.
if ( ! $header || 0 == $header ) {
show( $selector . $wpfcid, $args, $wpf_vars );
exit;
}
if ( 1 == $header ) {
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' . "\n";
echo '<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="' . esc_attr( str_replace( '_', '-', $wpf_vars['wpf_language'] ) ) . '">' . "\n";
echo "<head><title>wp-forecast iframe</title>\n";
echo '<meta http-equiv="content-type" content="text/html; charset=utf-8" />' . "\n";
echo '<style>' . wp_kses( wp_forecast_get_nowp_css(), wpf_allowed_tags() ) . '</style>' . "\n";
echo "</head>\n<body>\n";
show( $selector . $wpfcid, $args, $wpf_vars );
echo "</body></html>\n";
exit;
}
if ( 2 == $header ) {
// create weather html.
// add css.
add_action( 'wp_enqueue_scripts', 'wp_forecast_css_nowp' );
ob_start();
show( $selector . $wpfcid, $args, $wpf_vars );
$out = ob_get_contents();
ob_end_clean();
// create virtual page and display it.
$args = array(
'slug' => 'wp-forecast-direct',
'title' => 'wp-forecast weather',
'content' => $out,
);
$pg4 = new Wpf_VirtualPage( $args );
}
}
}
// MAIN.
// activating deactivating the plugin.
register_activation_hook( __FILE__, 'wp_forecast_activate' );
register_deactivation_hook( __FILE__, 'wp_forecast_deactivate' );
// add option page.
add_action( 'admin_menu', 'wp_forecast_admin' );
// Run our code later in case this loads prior to any required plugins.
add_action( 'plugins_loaded', 'widget_wp_forecast_init' );
// add virtual page filter.
add_action( 'init', 'wpf_filter_url' );