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