friendica-addons/curweather/curweather.php

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<?php
/**
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* Name: Current Weather
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* Description: Shows current weather conditions for user's location on their network page.
* Version: 1.1
* Author: Tony Baldwin <http://friendica.tonybaldwin.info/u/t0ny>
* Author: Fabio Comuni <http://kirkgroup.com/u/fabrixxm>
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* Author: Tobias Diekershoff <https://f.diekershoff.de/u/tobias>
*
*/
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require_once('include/network.php');
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require_once("mod/proxy.php");
require_once('include/text.php');
use Friendica\Core\Addon;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\PConfig;
// get the weather data from OpenWeatherMap
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function getWeather( $loc, $units='metric', $lang='en', $appid='', $cachetime=0) {
$url = "http://api.openweathermap.org/data/2.5/weather?q=".$loc."&appid=".$appid."&lang=".$lang."&units=".$units."&mode=xml";
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$cached = Cache::get('curweather'.md5($url));
$now = new DateTime();
if (!is_null($cached)) {
$cdate = PConfig::get(local_user(), 'curweather', 'last');
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$cached = unserialize($cached);
if ($cdate + $cachetime > $now->getTimestamp()) {
return $cached;
}
}
try {
$res = new SimpleXMLElement(fetch_url($url));
} catch (Exception $e) {
info(t('Error fetching weather data.\nError was: '.$e->getMessage()));
return false;
}
if ((string)$res->temperature['unit']==='metric') {
$tunit = '°C';
$wunit = 'm/s';
} else {
$tunit = '°F';
$wunit = 'mph';
}
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if ( trim((string)$res->weather['value']) == trim((string)$res->clouds['name']) ) {
$desc = (string)$res->clouds['name'];
} else {
$desc = (string)$res->weather['value'].', '.(string)$res->clouds['name'];
}
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$r = [
'city'=> (string) $res->city['name'][0],
'country' => (string) $res->city->country[0],
'lat' => (string) $res->city->coord['lat'],
'lon' => (string) $res->city->coord['lon'],
'temperature' => (string) $res->temperature['value'][0].$tunit,
'pressure' => (string) $res->pressure['value'].(string)$res->pressure['unit'],
'humidity' => (string) $res->humidity['value'].(string)$res->humidity['unit'],
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'descripion' => $desc,
'wind' => (string)$res->wind->speed['name'].' ('.(string)$res->wind->speed['value'].$wunit.')',
'update' => (string)$res->lastupdate['value'],
'icon' => (string)$res->weather['icon']
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];
PConfig::set(local_user(), 'curweather', 'last', $now->getTimestamp());
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Cache::set('curweather'.md5($url), serialize($r), CACHE_HOUR);
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return $r;
}
function curweather_install() {
Addon::registerHook('network_mod_init', 'addon/curweather/curweather.php', 'curweather_network_mod_init');
Addon::registerHook('plugin_settings', 'addon/curweather/curweather.php', 'curweather_plugin_settings');
Addon::registerHook('plugin_settings_post', 'addon/curweather/curweather.php', 'curweather_plugin_settings_post');
}
function curweather_uninstall() {
Addon::unregisterHook('network_mod_init', 'addon/curweather/curweather.php', 'curweather_network_mod_init');
Addon::unregisterHook('plugin_settings', 'addon/curweather/curweather.php', 'curweather_plugin_settings');
Addon::unregisterHook('plugin_settings_post', 'addon/curweather/curweather.php', 'curweather_plugin_settings_post');
}
function curweather_network_mod_init(&$fk_app,&$b) {
if(! intval(PConfig::get(local_user(),'curweather','curweather_enable')))
return;
$fk_app->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $fk_app->get_baseurl() . '/addon/curweather/curweather.css' . '" media="all" />' . "\r\n";
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// $rpt value is needed for location
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// $lang will be taken from the browser session to honour user settings
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// TODO $lang does not work if the default settings are used
// and not all response strings are translated
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// $units can be set in the settings by the user
// $appid is configured by the admin in the admin panel
// those parameters will be used to get: cloud status, temperature, preassure
// and relative humidity for display, also the relevent area of the map is
// linked from lat/log of the reply of OWMp
$rpt = PConfig::get(local_user(), 'curweather', 'curweather_loc');
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// set the language to the browsers language and use metric units
$lang = $_SESSION['language'];
$units = PConfig::get( local_user(), 'curweather', 'curweather_units');
$appid = Config::get('curweather','appid');
$cachetime = intval(Config::get('curweather','cachetime'));
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if ($units==="")
$units = 'metric';
$ok = true;
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$res = getWeather($rpt, $units, $lang, $appid, $cachetime);
if ($res===false)
$ok = false;
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if ($ok) {
$t = get_markup_template("widget.tpl", "addon/curweather/" );
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$curweather = replace_macros ($t, [
'$title' => t("Current Weather"),
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'$icon' => proxy_url('http://openweathermap.org/img/w/'.$res['icon'].'.png'),
'$city' => $res['city'],
'$lon' => $res['lon'],
'$lat' => $res['lat'],
'$description' => $res['descripion'],
'$temp' => $res['temperature'],
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'$relhumidity' => ['caption'=>t('Relative Humidity'), 'val'=>$res['humidity']],
'$pressure' => ['caption'=>t('Pressure'), 'val'=>$res['pressure']],
'$wind' => ['caption'=>t('Wind'), 'val'=> $res['wind']],
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'$lastupdate' => t('Last Updated').': '.$res['update'].'UTC',
'$databy' => t('Data by'),
'$showonmap' => t('Show on map')
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]);
} else {
$t = get_markup_template('widget-error.tpl', 'addon/curweather/');
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$curweather = replace_macros( $t, [
'$problem' => t('There was a problem accessing the weather data. But have a look'),
'$rpt' => $rpt,
'$atOWM' => t('at OpenWeatherMap')
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]);
}
$fk_app->page['aside'] = $curweather.$fk_app->page['aside'];
}
function curweather_plugin_settings_post($a,$post) {
if(! local_user() || (! x($_POST,'curweather-settings-submit')))
return;
PConfig::set(local_user(),'curweather','curweather_loc',trim($_POST['curweather_loc']));
PConfig::set(local_user(),'curweather','curweather_enable',intval($_POST['curweather_enable']));
PConfig::set(local_user(),'curweather','curweather_units',trim($_POST['curweather_units']));
info( t('Current Weather settings updated.') . EOL);
}
function curweather_plugin_settings(&$a,&$s) {
if(! local_user())
return;
/* Get the current state of our config variable */
$curweather_loc = PConfig::get(local_user(), 'curweather', 'curweather_loc');
$curweather_units = PConfig::get(local_user(), 'curweather', 'curweather_units');
$appid = Config::get('curweather','appid');
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if ($appid=="") {
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$noappidtext = t('No APPID found, please contact your admin to obtain one.');
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} else {
$noappidtext = '';
}
$enable = intval(PConfig::get(local_user(),'curweather','curweather_enable'));
$enable_checked = (($enable) ? ' checked="checked" ' : '');
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// load template and replace the macros
$t = get_markup_template("settings.tpl", "addon/curweather/" );
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$s = replace_macros ($t, [
'$submit' => t('Save Settings'),
'$header' => t('Current Weather').' '.t('Settings'),
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'$noappidtext' => $noappidtext,
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'$info' => t('Enter either the name of your location or the zip code.'),
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'$curweather_loc' => [ 'curweather_loc', t('Your Location'), $curweather_loc, t('Identifier of your location (name or zip code), e.g. <em>Berlin,DE</em> or <em>14476,DE</em>.') ],
'$curweather_units' => [ 'curweather_units', t('Units'), $curweather_units, t('select if the temperature should be displayed in &deg;C or &deg;F'), ['metric'=>'°C', 'imperial'=>'°F']],
'$enabled' => [ 'curweather_enable', t('Show weather data'), $enable, '']
]);
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return;
}
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// Config stuff for the admin panel to let the admin of the node set a APPID
// for accessing the API of openweathermap
function curweather_plugin_admin_post (&$a) {
if(! is_site_admin())
return;
if ($_POST['curweather-submit']) {
Config::set('curweather','appid',trim($_POST['appid']));
Config::set('curweather','cachetime',trim($_POST['cachetime']));
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info( t('Curweather settings saved.'.EOL));
}
}
function curweather_plugin_admin (&$a, &$o) {
if(! is_site_admin())
return;
$appid = Config::get('curweather','appid');
$cachetime = Config::get('curweather','cachetime');
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$t = get_markup_template("admin.tpl", "addon/curweather/" );
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$o = replace_macros ($t, [
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'$submit' => t('Save Settings'),
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'$cachetime' => ['cachetime', t('Caching Interval'), $cachetime, t('For how long should the weather data be cached? Choose according your OpenWeatherMap account type.'), ['0'=>t('no cache'), '300'=>'5 '.t('minutes'), '900'=>'15 '.t('minutes'), '1800'=>'30 '.t('minutes'), '3600'=>'60 '.t('minutes')]],
'$appid' => ['appid', t('Your APPID'), $appid, t('Your API key provided by OpenWeatherMap')]
]);
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}