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<?php
/**
* This file is part of the wp-forecast plugin for WordPress
*
* Copyright 2006-2023 Hans Matzen (email : webmaster at tuxlog dot de)
*
* 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
*
* @package wp-forecast
*/
if ( ! function_exists( 'get_wpf_opts' ) ) {
/**
* Converts the given wind parameters into a suitable windstring.
*
* @param string $metric the units to use.
* @param string $wspeed the wind speed.
* @param string $windunit the unit of the wind to convert.
*/
function windstr( $metric, $wspeed, $windunit ) {
// if its mph convert it to m/s.
if ( 1 != $metric ) {
$wspeed = round( $wspeed * 0.44704, 0 );
}
// convert it to selected unit.
switch ( $windunit ) {
case 'ms':
$wunit = 'm/s';
break;
case 'kmh':
$wspeed = round( $wspeed * 3.6, 0 );
$wunit = 'km/h';
break;
case 'mph':
$wspeed = round( $wspeed * 2.23694, 0 );
$wunit = 'mph';
break;
case 'kts':
$wspeed = round( $wspeed * 1.9438, 0 );
$wunit = 'kts';
break;
case 'bft':
$wbft = 0;
$bft = array( 0.3, 1.6, 3.4, 5.5, 8.0, 10.8, 13.9, 17.2, 20.8, 24.5, 28.5, 32.7 );
foreach ( $bft as $b ) {
if ( $wspeed < $b ) {
$wbft--;
break;
}
$wbft++;
}
$wunit = 'bft';
$wspeed = $wbft;
break;
}
return $wspeed . ' ' . $wunit;
}
/**
* Wrapper to make sure the correct option is used whether multisite or wp is used.
* only wraps main parameters and pass through all others.
*
* @param string $name the name of the option to get.
*/
function wpf_get_option( $name ) {
global $blog_id;
if ( ! function_exists( 'is_multisite' ) || ! is_multisite() || 1 == $blog_id ) {
return get_option( $name );
} else {
// this is the multisite part.
if ( 'wpf_sa_defaults' == $name || 'wpf_sa_allowed' == $name ) {
return get_blog_option( 1, $name );
} else {
return get_blog_option( $blog_id, $name );
}
}
}
/**
* Wrapper for update option to hide differences between wp and wpmu.
*
* @param string $name the name of the option.
* @param string $value the value of the option.
*/
function wpf_update_option( $name, $value ) {
global $blog_id;
if ( ! function_exists( 'is_multisite' ) || ! is_multisite() || 1 == $blog_id ) {
update_option( $name, $value );
} else {
update_blog_option( $blog_id, $name, $value );
}
}
/**
* Wrapper for add option to hide differences between wp and wpmu.
*
* @param string $name the name of the option.
* @param string $value the value of the option.
*/
function wpf_add_option( $name, $value ) {
global $blog_id;
if ( ! function_exists( 'is_multisite' ) || ! is_multisite() || 1 == $blog_id ) {
add_option( $name, $value );
} else {
add_blog_option( $blog_id, $name, $value );
}
}
/**
* Reads all wp-forecast options and returns an array.
*
* @param $string $wpfcid the id of th widget.
*/
function get_wpf_opts( $wpfcid ) {
global $blog_id;
$av = array();
$opt = wpf_get_option( 'wp-forecast-opts' . $wpfcid );
if ( ! empty( $opt ) ) {
// unpack if necessary.
$av = maybe_unserialize( $opt );
} elseif ( get_option( 'wp-forecast-location' . $wpfcid ) != '' ) {
// get old widget options from database.
$av['service'] = get_option( 'wp-forecast-service' . $wpfcid );
$av['apikey1'] = get_option( 'wp-forecast-apikey1' . $wpfcid );
$av['apikey2'] = get_option( 'wp-forecast-apikey2' . $wpfcid );
$av['location'] = get_option( 'wp-forecast-location' . $wpfcid );
$av['locname'] = get_option( 'wp-forecast-locname' . $wpfcid );
$av['refresh'] = get_option( 'wp-forecast-refresh' . $wpfcid );
$av['metric'] = get_option( 'wp-forecast-metric' . $wpfcid );
$av['wpf_language'] = get_option( 'wp-forecast-language' . $wpfcid );
$av['daytime'] = get_option( 'wp-forecast-daytime' . $wpfcid );
$av['nighttime'] = get_option( 'wp-forecast-nighttime' . $wpfcid );
$av['dispconfig'] = get_option( 'wp-forecast-dispconfig' . $wpfcid );
$av['windunit'] = get_option( 'wp-forecast-windunit' . $wpfcid );
$av['currtime'] = get_option( 'wp-forecast-currtime' . $wpfcid );
$av['timeoffset'] = get_option( 'wp-forecast-timeoffset' . $wpfcid );
if ( '' == trim( $av['timeoffset'] ) ) {
$av['timeoffset'] = 0;
}
$av['title'] = get_option( 'wp-forecast-title' . $wpfcid );
// replace old options by new one row option.
wpf_add_option( 'wp-forecast-opts' . $wpfcid, serialize( $av ) );
// remove old options from database.
delete_option( 'wp-forecast-location' . $wpfcid );
delete_option( 'wp-forecast-locname' . $wpfcid );
delete_option( 'wp-forecast-refresh' . $wpfcid );
delete_option( 'wp-forecast-metric' . $wpfcid );
delete_option( 'wp-forecast-language' . $wpfcid );
delete_option( 'wp-forecast-daytime' . $wpfcid );
delete_option( 'wp-forecast-nighttime' . $wpfcid );
delete_option( 'wp-forecast-dispconfig' . $wpfcid );
delete_option( 'wp-forecast-windunit' . $wpfcid );
delete_option( 'wp-forecast-currtime' . $wpfcid );
delete_option( 'wp-forecast-title' . $wpfcid );
delete_option( 'wp-forecast-service' . $wpfcid );
delete_option( 'wp-forecast-apikey1' . $wpfcid );
delete_option( 'wp-forecast-apikey2' . $wpfcid );
} else {
$av = array();
}
// add expire options.
$av['expire'] = get_option( 'wp-forecast-expire' . $wpfcid );
// add generic options.
$av['fc_date_format'] = get_option( 'date_format' );
$av['fc_time_format'] = get_option( 'time_format' );
$av['xmlerror'] = '';
// set static uris for each provider.
$av['OPENWEATHERMAP_BASE_URI'] = 'https://api.openweathermap.org/data/2.5';
$av['OPENWEATHERMAP_BASE_URI_V3'] = 'https://api.openweathermap.org/data/3.0/onecall?';
$av['OPENMETEO_BASE_URI'] = 'https://api.open-meteo.com/v1/forecast?';
$av['OPENMETEO_LOC_URI'] = 'https://geocoding-api.open-meteo.com/v1/search?';
// add defaults to missing vars
if ( ! array_key_exists('fonticon', $av) ) {
$av['fonticon'] = 0;
}
if ( ! array_key_exists('fonticon_color', $av) ) {
$av['fonticon_color'] = '#999999';
}
// if we use multisite then merge admin options.
if ( function_exists( 'is_multisite' ) && is_multisite() && 1 != $blog_id ) {
// read defaults and allowed fields.
$defaults = maybe_unserialize( wpf_get_option( 'wpf_sa_defaults' ) );
$allowed = maybe_unserialize( wpf_get_option( 'wpf_sa_allowed' ) );
// in case allowed is still empty.
if ( ! $allowed ) {
$allowed = array();
}
// set wpf_maxwidgets for users.
global $blog_id, $wpf_maxwidgets;
if ( $blog_id > '1' && isset( $defaults['wp-forecast-count'] ) ) {
$wpf_maxwidgets = $defaults['wp-forecast-count'];
}
// map rest of fields.
foreach ( $allowed as $f => $fswitch ) {
$fname = substr( $f, 3 ); // strip ue_ prefix.
if ( 1 != $fswitch || ! isset( $av[ $fname ] ) ) {
// replace value in av with forced default.
if ( array_key_exists( $fname, $defaults ) ) {
$av[ $fname ] = $defaults[ $fname ];
}
}
}
}
return $av;
}
/**
* Just return the css link.
* this function is called via the wp_head hook.
*
* @param string $wpfcid the widget id.
*/
function wp_forecast_css( $wpfcid = 'A' ) {
// load weather icon font.
wp_enqueue_style( 'wp-forecast-weathericons', plugin_dir_url( __FILE__ ) . '/weather-icons/weather-icons.min.css', array(), '9999' );
wp_enqueue_style( 'wp-forecast-weathericons-wind', plugin_dir_url( __FILE__ ) . '/weather-icons/weather-icons-wind.min.css', array(), '9999' );
$wpf_loadcss = wpf_get_option( 'wp-forecast-loadcss' );
if ( 1 == $wpf_loadcss ) {
return;
}
$def = 'wp-forecast-default.css';
$user = 'wp-forecast.css';
if ( file_exists( WP_PLUGIN_DIR . '/wp-forecast/' . $user ) ) {
$def = $user;
}
wp_enqueue_style( 'wp-forecast', plugin_dir_url( __FILE__ ) . $def, array(), '9999' );
}
/**
* Just return the css link when not using WordPress
* this function is called when showing widget directly
*
* @param string $wpfcid the widget id.
*/
function wp_forecast_css_nowp( $wpfcid = 'A' ) {
// load weather icon font.
wp_enqueue_style( 'wp-forecast-weathericons', plugin_dir_url( __FILE__ ) . '/weather-icons/weather-icons.min.css', array(), '9999' );
wp_enqueue_style( 'wp-forecast-weathericons-wind', plugin_dir_url( __FILE__ ) . '/weather-icons/weather-icons-wind.min.css', array(), '9999' );
$wpf_loadcss = wpf_get_option( 'wp-forecast-loadcss' );
if ( 1 == $wpf_loadcss ) {
return;
}
$def = 'wp-forecast-default-nowp.css';
$user = 'wp-forecast-nowp.css';
if ( file_exists( WP_PLUGIN_DIR . '/wp-forecast/' . $user ) ) {
$def = $user;
}
wp_enqueue_style( 'wp-forecast-nowp', plugin_dir_url( __FILE__ ) . $def, array(), '9999' );
}
/**
* Just return the css link when not using WordPress
* this function is called when showing widget directly
*/
function wp_forecast_get_nowp_css() {
$wpf_loadcss = wpf_get_option( 'wp-forecast-loadcss' );
if ( 1 == $wpf_loadcss ) {
return '';
}
$def = 'wp-forecast-default-nowp.css';
$user = 'wp-forecast-nowp.css';
if ( file_exists( WP_PLUGIN_DIR . '/wp-forecast/' . $user ) ) {
$def = $user;
}
$res = '';
$file = WP_PLUGIN_DIR . "/wp-forecast/$def";
$f = fopen( $file, 'r' );
if ( $f ) {
$res = fread( $f, filesize( $file ) );
fclose( $f );
}
return $res;
}
/**
* Returns the number's widget id used with wp-forecast
* maximum is 999999 :-)
*
* @param int $number number of widgets to use.
*/
function get_widget_id( $number ) {
// if negative take the first id.
if ( $number < 0 ) {
return 'A';
}
// the first widgets use chars above we go with 0 padded numbers.
if ( $number <= 25 ) {
return substr( 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', $number, 1 );
} else {
return str_pad( $number, 6, '0', STR_PAD_LEFT );
}
}
/**
* Function tries to determine the icon path for icon number ino.
*
* @param string $ino icon number.
*/
function find_icon( $ino ) {
$path = WPF_PATH . '/icons/' . $ino;
$ext = '.gif';
if ( file_exists( $path . '.gif' ) ) {
$ext = '.gif';
} elseif ( file_exists( $path . '.png' ) ) {
$ext = '.png';
} elseif ( file_exists( $path . '.jpg' ) ) {
$ext = '.jpg';
} elseif ( file_exists( $path . '.GIF' ) ) {
$ext = '.GIF';
} elseif ( file_exists( $path . '.PNG' ) ) {
$ext = '.PNG';
} elseif ( file_exists( $path . '.JPG' ) ) {
$ext = '.JPG';
} elseif ( file_exists( $path . '.jpeg' ) ) {
$ext = '.jpeg';
} elseif ( file_exists( $path . '.JPEG' ) ) {
$ext = '.JPEG';
} elseif ( file_exists( $path . '.svg' ) ) {
$ext = '.svg';
} elseif ( file_exists( $path . '.SVG' ) ) {
$ext = '.SVG';
}
return $ino . $ext;
}
/**
* Translates the wind direction into another language
*
* @param string $wdir direction in degrees.
* @param string $tdom textdomain.
*/
function translate_winddir( $wdir, $tdom ) {
// translate winddir char by char.
$winddir = '';
$l = strlen( $wdir );
for ( $i = 0;$i < $l;$i++ ) {
$winddir = $winddir . wpf__( $wdir[ $i ], $tdom );
}
return $winddir;
}
/**
* Translates the wind direction in degree to a string.
*
* @param string $wdir direction in degrees.
* @param string $tdom passhtrough.
*/
function translate_winddir_degree( $wdir, $tdom ) {
$dir = '-';
if ( 0 <= $wdir ) {
$dir = 'N';
}
if ( 11.25 <= $wdir ) {
$dir = 'NNE';
}
if ( 33.75 <= $wdir ) {
$dir = 'NE';
}
if ( 56.25 <= $wdir ) {
$dir = 'ENE';
}
if ( 78.75 <= $wdir ) {
$dir = 'E';
}
if ( 101.25 <= $wdir ) {
$dir = 'ESE';
}
if ( 123.75 <= $wdir ) {
$dir = 'SE';
}
if ( 146.25 <= $wdir ) {
$dir = 'SSE';
}
if ( 168.75 <= $wdir ) {
$dir = 'S';
}
if ( 191.25 <= $wdir ) {
$dir = 'SSW';
}
if ( 213.75 <= $wdir ) {
$dir = 'SW';
}
if ( 236.25 <= $wdir ) {
$dir = 'WSW';
}
if ( 258.75 <= $wdir ) {
$dir = 'W';
}
if ( 281.25 <= $wdir ) {
$dir = 'WNW';
}
if ( 303.75 <= $wdir ) {
$dir = 'NW';
}
if ( 326.25 <= $wdir ) {
$dir = 'NNW';
}
if ( 348.75 <= $wdir ) {
$dir = 'N';
}
return translate_winddir( $dir, $tdom );
}
/**
* Function for plugin_locale filter hook.
* only returns the first parameter.
*
* @param string $locale iso code of the locale.
* @param string $domain complete domain of the .mo file.
*/
function wpf_lplug( $locale, $domain ) {
// extract locale from domain.
$wpf_locale = substr( $domain, 12, 5 );
return $wpf_locale;
}
/**
* Return an array containgin all allowed HTML tags and attributes
*/
function wpf_allowed_tags() {
$allowed_atts = array(
'align' => array(),
'class' => array(),
'type' => array(),
'id' => array(),
'dir' => array(),
'lang' => array(),
'style' => array(),
'xml:lang' => array(),
'src' => array(),
'alt' => array(),
'href' => array(),
'rel' => array(),
'rev' => array(),
'target' => array(),
'novalidate' => array(),
'type' => array(),
'value' => array(),
'name' => array(),
'tabindex' => array(),
'action' => array(),
'method' => array(),
'for' => array(),
'width' => array(),
'height' => array(),
'data' => array(),
'title' => array(),
'maxlength' => array(),
'border' => array(),
'onclick' => array(),
'checked' => array(),
'selected' => array(),
'size' => array(),
'onchange' => array(),
);
$allowedposttags['aside'] = $allowed_atts;
$allowedposttags['section'] = $allowed_atts;
$allowedposttags['nav'] = $allowed_atts;
$allowedposttags['form'] = $allowed_atts;
$allowedposttags['label'] = $allowed_atts;
$allowedposttags['input'] = $allowed_atts;
$allowedposttags['textarea'] = $allowed_atts;
$allowedposttags['select'] = $allowed_atts;
$allowedposttags['option'] = $allowed_atts;
$allowedposttags['iframe'] = $allowed_atts;
$allowedposttags['script'] = $allowed_atts;
$allowedposttags['style'] = $allowed_atts;
$allowedposttags['strong'] = $allowed_atts;
$allowedposttags['small'] = $allowed_atts;
$allowedposttags['table'] = $allowed_atts;
$allowedposttags['span'] = $allowed_atts;
$allowedposttags['abbr'] = $allowed_atts;
$allowedposttags['code'] = $allowed_atts;
$allowedposttags['pre'] = $allowed_atts;
$allowedposttags['div'] = $allowed_atts;
$allowedposttags['img'] = $allowed_atts;
$allowedposttags['h1'] = $allowed_atts;
$allowedposttags['h2'] = $allowed_atts;
$allowedposttags['h3'] = $allowed_atts;
$allowedposttags['h4'] = $allowed_atts;
$allowedposttags['h5'] = $allowed_atts;
$allowedposttags['h6'] = $allowed_atts;
$allowedposttags['ol'] = $allowed_atts;
$allowedposttags['ul'] = $allowed_atts;
$allowedposttags['li'] = $allowed_atts;
$allowedposttags['em'] = $allowed_atts;
$allowedposttags['hr'] = $allowed_atts;
$allowedposttags['br'] = $allowed_atts;
$allowedposttags['tr'] = $allowed_atts;
$allowedposttags['td'] = $allowed_atts;
$allowedposttags['p'] = $allowed_atts;
$allowedposttags['a'] = $allowed_atts;
$allowedposttags['b'] = $allowed_atts;
$allowedposttags['i'] = $allowed_atts;
return $allowedposttags;
}
/**
* Function to translate a string into another language
* using the wpf own translation mechanism
* this is necessary because WordPress does not allow
* more than one language per plugin
*
* @param string $s string to translate.
* @param string $d domain to translate to.
*/
function wpf__( $s, $d ) {
global $wpf_lang_dict;
if ( ! isset( $wpf_lang_dict ) ) {
$wpf_lang_dict = array();
}
if ( array_key_exists( $d, $wpf_lang_dict ) && isset( $wpf_lang_dict[ $d ] ) ) {
if ( array_key_exists( $s, $wpf_lang_dict[ $d ] ) ) {
return $wpf_lang_dict[ $d ][ $s ];
}
}
// nothing found return original.
return $s;
}
/**
* Function to translate a string into another language
* using the wpf own translation mechanism
* this is necessary because WordPress does not allow
* more than one language per plugin
* This one echos the translation.
*
* @param string $s string to translate.
* @param string $d domain to translate to.
*/
function wpf_e( $s, $d ) {
echo esc_attr( wpf__( $s, $d ) );
}
/**
* Function to translate a string into another language
* using the wpf own translation mechanism
* this is necessary because WordPress does not allow
* more than one language per plugin
* This one escape it too
*
* @param string $s string to translate.
* @param string $d domain to translate to.
*/
function wpf_esc_attr__( $s, $d ) {
return esc_attr( wpf__( $s, $d ) );
}
/**
* Function to translate a string into another language
* using the wpf own translation mechanism
* this is necessary because WordPress does not allow
* more than one language per plugin
* This one escapes and echos the translation.
*
* @param string $s string to translate.
* @param string $d domain to translate to.
*/
function wpf_esc_attr_e( $s, $d ) {
echo esc_attr( wpf__( $s, $d ) );
}
/**
* Echos the admin notice concerning the accuweather probem.
*/
function wpf_accuweather_problem_notice() {
$flag = get_option( 'wpf-show-admin-notice' );
if ( false === $flag ) {
$out = '<div class="notice is-dismissible"><p>';
$out .= __(
'As of September 10, 2023 it seems Accuweather has discontinued the free api-service.
Please switch to either Openweathermap or Open-Meteo instead.
For use with OpenWeatherMap.org you will need a personal API-Key and have to register at their site.
All your Accuweather Widgets have been set to Open-Meteo to avoid errors on your website. Please check if all settings are correct.',
'wp-forecast'
);
$out .= '</p></div>';
echo wp_kses( $out, wpf_allowed_tags() );
update_option( 'wpf-show-admin-notice', 1 );
}
}
} // end of function_exists