add geonames plugin

geonames/geonames.css

@@ -0,0 +1,14 @@
+
+
+
+#geonames-enable-label {
+	float: left;
+	width: 200px;
+	margin-bottom: 25px;
+}
+
+#geonames-checkbox {
+	float: left;
+}
+
+

geonames/geonames.php

@@ -0,0 +1,189 @@
+<?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
+ *
+ * $a->config['geonames']['username'] = 'your_username';
+ * Also visit http://geonames.org/manageaccount and enable access to the free web services
+ *
+ * When plugin is installed, the system calls the plugin
+ * name_install() function, located in 'addon/name/name.php',
+ * where 'name' is the name of the addon.
+ * If the addon is removed from the configuration list, the 
+ * system will call the name_uninstall() function.
+ *
+ */
+
+
+function geonames_install() {
+
+	/**
+	 * 
+	 * Our plugin will attach in three places.
+	 * The first is just prior to storing a local post.
+	 *
+	 */
+
+	register_hook('post_local', 'addon/geonames/geonames.php', 'geonames_post_hook');
+
+	/**
+	 *
+	 * Then we'll attach into the plugin settings page, and also the 
+	 * settings post hook so that we can create and update
+	 * user preferences.
+	 *
+	 */
+
+	register_hook('plugin_settings', 'addon/geonames/geonames.php', 'geonames_settings');
+	register_hook('plugin_settings_post', 'addon/geonames/geonames.php', 'geonames_settings_post');
+
+	logger("installed geonames");
+}
+
+
+function geonames_uninstall() {
+
+	/**
+	 *
+	 * uninstall unregisters any hooks created with register_hook
+	 * during install. It may also delete configuration settings
+	 * and any other cleanup.
+	 *
+	 */
+
+	unregister_hook('post_local',    'addon/geonames/geonames.php', 'geonames_post_hook');
+	unregister_hook('plugin_settings', 'addon/geonames/geonames.php', 'geonames_settings');
+	unregister_hook('plugin_settings_post', 'addon/geonames/geonames.php', 'geonames_settings_post');
+
+
+	logger("removed geonames");
+}
+
+
+
+function geonames_post_hook($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 $_POST array.
+ * We will make sure we've got a valid user account
+ * and if so set our configuration setting for this person.
+ *
+ */
+
+function geonames_settings_post($a,$post) {
+	if(! local_user() || (! x($_POST,'geonames-submit')))
+		return;
+	set_pconfig(local_user(),'geonames','enable',intval($_POST['geonames']));
+
+	info( t('Geonames settings updated.') . EOL);
+}
+
+
+/**
+ *
+ * Called from the Plugin Setting form. 
+ * Add our own settings info to the page.
+ *
+ */
+
+
+
+function geonames_settings(&$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('Submit') . '" /></div></div>';
+
+}