191 lines
5 KiB
PHP
191 lines
5 KiB
PHP
<?php
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/**
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* Name: Geonames
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* Description: Use Geonames service to resolve nearest populated location for given latitude, longitude
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* Version: 1.0
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* Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
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*
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*
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* Pre-requisite: Register a username at geonames.org
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* and set in .htconfig.php
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*
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* $a->config['geonames']['username'] = 'your_username';
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* Also visit http://geonames.org/manageaccount and enable access to the free web services
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*
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* When addon is installed, the system calls the addon
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* name_install() function, located in 'addon/name/name.php',
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* where 'name' is the name of the addon.
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* If the addon is removed from the configuration list, the
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* system will call the name_uninstall() function.
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*
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*/
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use Friendica\Core\Addon;
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use Friendica\Core\Config;
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use Friendica\Core\PConfig;
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function geonames_install() {
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/**
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*
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* Our addon will attach in three places.
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* The first is just prior to storing a local post.
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*
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*/
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Addon::registerHook('post_local', 'addon/geonames/geonames.php', 'geonames_post_hook');
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/**
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*
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* Then we'll attach into the addon settings page, and also the
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* settings post hook so that we can create and update
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* user preferences.
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*
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*/
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Addon::registerHook('addon_settings', 'addon/geonames/geonames.php', 'geonames_addon_admin');
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Addon::registerHook('addon_settings_post', 'addon/geonames/geonames.php', 'geonames_addon_admin_post');
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logger("installed geonames");
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}
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function geonames_uninstall() {
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/**
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*
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* uninstall unregisters any hooks created with register_hook
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* during install. It may also delete configuration settings
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* and any other cleanup.
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*
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*/
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Addon::unregisterHook('post_local', 'addon/geonames/geonames.php', 'geonames_post_hook');
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Addon::unregisterHook('addon_settings', 'addon/geonames/geonames.php', 'geonames_addon_admin');
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Addon::unregisterHook('addon_settings_post', 'addon/geonames/geonames.php', 'geonames_addon_admin_post');
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logger("removed geonames");
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}
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function geonames_post_hook($a, &$item) {
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/**
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*
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* An item was posted on the local system.
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* We are going to look for specific items:
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* - A status post by a profile owner
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* - The profile owner must have allowed our addon
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*
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*/
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logger('geonames invoked');
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if(! local_user()) /* non-zero if this is a logged in user of this system */
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return;
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if(local_user() != $item['uid']) /* Does this person own the post? */
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return;
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if($item['parent']) /* If the item has a parent, this is a comment or something else, not a status post. */
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return;
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/* Retrieve our personal config setting */
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$geo_account = Config::get('geonames', 'username');
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$active = PConfig::get(local_user(), 'geonames', 'enable');
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if((! $geo_account) || (! $active))
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return;
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if((! $item['coord']) || ($item['location']))
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return;
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$coords = explode(' ',$item['coord']);
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/**
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*
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* OK, we're allowed to do our stuff.
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*
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*/
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$s = fetch_url('http://api.geonames.org/findNearbyPlaceName?lat=' . $coords[0] . '&lng=' . $coords[1] . '&username=' . $geo_account);
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if(! $s)
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return;
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$xml = parse_xml_string($s);
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if($xml->geoname->name && $xml->geoname->countryName)
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$item['location'] = $xml->geoname->name . ', ' . $xml->geoname->countryName;
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// logger('geonames : ' . print_r($xml,true), LOGGER_DATA);
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return;
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}
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/**
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*
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* Callback from the settings post function.
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* $post contains the $_POST array.
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* We will make sure we've got a valid user account
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* and if so set our configuration setting for this person.
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*
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*/
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function geonames_addon_admin_post($a,$post) {
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if(! local_user() || (! x($_POST,'geonames-submit')))
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return;
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PConfig::set(local_user(),'geonames','enable',intval($_POST['geonames']));
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info( t('Geonames settings updated.') . EOL);
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}
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/**
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*
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* Called from the Addon Setting form.
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* Add our own settings info to the page.
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*
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*/
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function geonames_addon_admin(&$a,&$s) {
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if(! local_user())
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return;
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$geo_account = Config::get('geonames', 'username');
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if(! $geo_account)
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return;
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/* Add our stylesheet to the page so we can make our settings look nice */
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$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/geonames/geonames.css' . '" media="all" />' . "\r\n";
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/* Get the current state of our config variable */
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$enabled = PConfig::get(local_user(),'geonames','enable');
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$checked = (($enabled) ? ' checked="checked" ' : '');
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/* Add some HTML to the existing form */
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$s .= '<div class="settings-block">';
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$s .= '<h3>' . t('Geonames Settings') . '</h3>';
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$s .= '<div id="geonames-enable-wrapper">';
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$s .= '<label id="geonames-enable-label" for="geonames-checkbox">' . t('Enable Geonames Addon') . '</label>';
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$s .= '<input id="geonames-checkbox" type="checkbox" name="geonames" value="1" ' . $checked . '/>';
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$s .= '</div><div class="clear"></div>';
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/* provide a submit button */
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$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="geonames-submit" class="settings-submit" value="' . t('Save Settings') . '" /></div></div>';
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}
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